<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE article PUBLIC "-//NLM//DTD Journal Publishing DTD v3.0 20080202//EN" "http://dtd.nlm.nih.gov/publishing/3.0/journalpublishing3.dtd">
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" dtd-version="3.0" xml:lang="en" article-type="research article">
 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">
    jamp
   </journal-id>
   <journal-title-group>
    <journal-title>
     Journal of Applied Mathematics and Physics
    </journal-title>
   </journal-title-group>
   <issn pub-type="epub">
    2327-4352
   </issn>
   <issn publication-format="print">
    2327-4379
   </issn>
   <publisher>
    <publisher-name>
     Scientific Research Publishing
    </publisher-name>
   </publisher>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="doi">
    10.4236/jamp.2025.135095
   </article-id>
   <article-id pub-id-type="publisher-id">
    jamp-142753
   </article-id>
   <article-categories>
    <subj-group subj-group-type="heading">
     <subject>
      Articles
     </subject>
    </subj-group>
    <subj-group subj-group-type="Discipline-v2">
     <subject>
      Physics 
     </subject>
     <subject>
       Mathematics
     </subject>
    </subj-group>
   </article-categories>
   <title-group>
    A New Contraction in b-Metric-Like Spaces with an Application
   </title-group>
   <contrib-group>
    <contrib contrib-type="author" xlink:type="simple">
     <name name-style="western">
      <surname>
       Ju
      </surname>
      <given-names>
       Hu
      </given-names>
     </name> 
     <xref ref-type="aff" rid="aff1"> 
      <sup>1</sup>
     </xref>
    </contrib>
    <contrib contrib-type="author" xlink:type="simple">
     <name name-style="western">
      <surname>
       Xiaolan
      </surname>
      <given-names>
       Liu
      </given-names>
     </name> 
     <xref ref-type="aff" rid="aff1"> 
      <sup>1</sup>
     </xref> 
     <xref ref-type="aff" rid="aff2"> 
      <sup>2</sup>
     </xref> 
     <xref ref-type="aff" rid="aff3"> 
      <sup>3</sup>
     </xref>
    </contrib>
   </contrib-group> 
   <aff id="aff1">
    <addr-line>
     aCollege of Mathematics and Statistics, Sichuan University of Science and Engineering, Zigong, China
    </addr-line> 
   </aff> 
   <aff id="aff2">
    <addr-line>
     aArtificial Intelligence Key Laboratory of Sichuan Province, Zigong, China
    </addr-line> 
   </aff> 
   <aff id="aff3">
    <addr-line>
     aSouth Sichuan Center for Applied Mathematics, Zigong, China
    </addr-line> 
   </aff> 
   <pub-date pub-type="epub">
    <day>
     08
    </day> 
    <month>
     05
    </month>
    <year>
     2025
    </year>
   </pub-date> 
   <volume>
    13
   </volume> 
   <issue>
    05
   </issue>
   <fpage>
    1719
   </fpage>
   <lpage>
    1735
   </lpage>
   <history>
    <date date-type="received">
     <day>
      13,
     </day>
     <month>
      April
     </month>
     <year>
      2025
     </year>
    </date>
    <date date-type="published">
     <day>
      20,
     </day>
     <month>
      April
     </month>
     <year>
      2025
     </year> 
    </date> 
    <date date-type="accepted">
     <day>
      20,
     </day>
     <month>
      May
     </month>
     <year>
      2025
     </year> 
    </date>
   </history>
   <permissions>
    <copyright-statement>
     © Copyright 2014 by authors and Scientific Research Publishing Inc. 
    </copyright-statement>
    <copyright-year>
     2014
    </copyright-year>
    <license>
     <license-p>
      This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/
     </license-p>
    </license>
   </permissions>
   <abstract>
    In this paper, via the concept of w-distance in b-metric-like space, we introduce a new contraction, called β-ζ-contraction. Furthermore, we get the existence and uniqueness of the corresponding fixed point. In addition, we also furnish several examples to demonstrate the validity and practical applicability of our findings. Finally, we utilize the derived outcomes to address problems within differential equations.
   </abstract>
   <kwd-group> 
    <kwd>
     w-Distance
    </kwd> 
    <kwd>
      Fixed Point
    </kwd> 
    <kwd>
      β-ζ-Contraction
    </kwd> 
    <kwd>
      b-Metric-Like Space
    </kwd> 
    <kwd>
      Differential Equation
    </kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <sec id="s1">
   <title>1. Introduction</title>
   <p>In this paper, we define the set of all real numbers as <img width="19.097222222222225" src="https://html.scirp.org/file/1724162-rId14.svg?20250523033232">, the set of all non-negative real numbers as <img width="26.030368763557483" src="https://html.scirp.org/file/1724162-rId16.svg?20250523033234">, the set of all non-negative integers by <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId18.svg?20250523033235">.</img></img></img></p>
   <p>In 2012, Samet et al. <xref ref-type="bibr" rid="scirp.142753-1">
     [1]
    </xref> proposed the concept of α-admissible mapping, which plays a very important role in fixed point theory. In 2014, on the basis of α-admissible mapping, the concepts of α-orbit admissible and triangular α-orbit admissible mapping were raised by Popescu <xref ref-type="bibr" rid="scirp.142753-2">
     [2]
    </xref>.</p>
   <p>Next, we will recall a new metric space. In 2013, Alghamdi et al. <xref ref-type="bibr" rid="scirp.142753-3">
     [3]
    </xref> introduced b-metric-like space for the first time. It is also known as a dislocated metric space by Karapınar <xref ref-type="bibr" rid="scirp.142753-4">
     [4]
    </xref>. In 2015, Chen et al. <xref ref-type="bibr" rid="scirp.142753-5">
     [5]
    </xref> established several novel theorems concerning fixed points and common fixed points within the context of b-metric spaces, and gave some examples and applications to prove the accuracy and practicability of their conclusions. In 2016, Gholamian et al. <xref ref-type="bibr" rid="scirp.142753-6">
     [6]
    </xref> introduced generalized Meir-Keeler compression in b-metric-like spaces, and proved the existence of fixed points by <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId20.svg?20250523033227"> function. In 2017, Zoto et al. 
     <xref ref-type="bibr" rid="scirp.142753-7">
      [7]
     </xref> introduced α-admissible mapping to prove the uniqueness of fixed point in b-metric-like spaces. In 2018, Gholizadeh et al. 
     <xref ref-type="bibr" rid="scirp.142753-8">
      [8]
     </xref> proved the results of the best proximity point in b-metric-like spaces, and provided an example to prove the accuracy of the result. In the same year, Dakun et al. 
     <xref ref-type="bibr" rid="scirp.142753-9">
      [9]
     </xref> introduced the concept of <img width="57.26681127982646" src="https://html.scirp.org/file/1724162-rId22.svg?20250523033229">-contractions, and studied the common fixed point theorems for such contractions in b-metric-like spaces. In 2021, Javed et al. 
      <xref ref-type="bibr" rid="scirp.142753-10">
       [10]
      </xref> extended b-metric-like-space to fuzzy b-metric-like-space, proved the uniqueness of fixed point, and applies it to integral equation, which shows the practicability of the results in this paper.</img></img></p>
   <p>After the above mappings and related metric spaces, we continue to understand a contraction, that is, Geraghty type hybrid contractions. In 2020, Alzaid et al. <xref ref-type="bibr" rid="scirp.142753-11">
     [11]
    </xref> studied Geraghty type hybrid contractions and got some fixed point results in a b-metric space.</p>
   <p>Subsequently, Karapinar et al. <xref ref-type="bibr" rid="scirp.142753-12">
     [12]
    </xref> introduced admissible hybrid Geraghty contractions by combining hybrid Geraghty contractions with α-admissible mapping, and obtained some fixed point results of such contractions in a complete metric space.</p>
   <p>In 1996, a class of asymmetric structures were introduced firstly in terms of w-distance by Kada et al. <xref ref-type="bibr" rid="scirp.142753-13">
     [13]
    </xref> in metric spaces. In 2023, Hu et al. <xref ref-type="bibr" rid="scirp.142753-14">
     [14]
    </xref> generalized the w-distance and obtained the φ-fixed point result for nonlinear compression. Inspired by it, we also prove some fixed point theorems by w-distance. Next, we introduce some related lemmas about w-distance.</p>
   <p>Inspired by the aforementioned research outcomes and the latest advancements in fixed point theory within b-metric-like spaces, we decide to expand the research results of Karapinar et al. <xref ref-type="bibr" rid="scirp.142753-12">
     [12]
    </xref> to the fixed disc of <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId24.svg?20250523033231">. And inspired by 
     <xref ref-type="bibr" rid="scirp.142753-14">
      [14]
     </xref>, employing a w-distance, we introduce a new type contraction in b-metric-like spaces, called β-ζ-contraction, and some new fixed point theorems are obtained by weakening their conditions. On the one hand, our results improve the research results of Alzaid et al. 
     <xref ref-type="bibr" rid="scirp.142753-11">
      [11]
     </xref> and expand the research results of Karapinar et al. 
     <xref ref-type="bibr" rid="scirp.142753-12">
      [12]
     </xref>. On the other hand, it enriches the fixed point theory results under b-metric-like spaces.</img></p>
   <p>The geometric characteristics of non-unique fixed points have been extensively examined from multiple perspectives. For instance, the fixed-disc problem, fixed-circle problem and so on. Özgür and Taş <xref ref-type="bibr" rid="scirp.142753-15">
     [15]
    </xref> introduced the concept of a fixed circle, and the fixed circle problem in metric space is proposed as a new direction for the promotion of fixed point theory. Later, Hussain et al. <xref ref-type="bibr" rid="scirp.142753-16">
     [16]
    </xref> presented some fixed disc results for improving contractions in F-metric space.</p>
   <p>In 2019, the concept of α-<img width="17.346053772766695" src="https://html.scirp.org/file/1724162-rId26.svg?20250523033232">-admissible was raised by Aydi et al. 
     <xref ref-type="bibr" rid="scirp.142753-17">
      [17]
     </xref> in rectangular metric spaces. Now we give a corresponding definition in b-metric-like spaces.</img></p>
  </sec><sec id="s2">
   <title>2. Preliminaries</title>
   <p>Definition 1. <xref ref-type="bibr" rid="scirp.142753-2">
     [2]
    </xref> Let <img width="109.32754880694142" src="https://html.scirp.org/file/1724162-rId28.svg?20250523033238"> be a function. We say that a mapping <img width="72.85342584562011" src="https://html.scirp.org/file/1724162-rId30.svg?20250523033238"> is α-orbital admissible if <img width="197.91666666666666" src="https://html.scirp.org/file/1724162-rId32.svg?20250523033238">, for all <img width="39.91323210412148" src="https://html.scirp.org/file/1724162-rId34.svg?20250523033238">.</img></img></img></img></p>
   <p>Definition 2. <xref ref-type="bibr" rid="scirp.142753-2">
     [2]
    </xref> Let <img width="109.32754880694142" src="https://html.scirp.org/file/1724162-rId36.svg?20250523033238"> be a function. If <img width="72.85342584562011" src="https://html.scirp.org/file/1724162-rId38.svg?20250523033238"> meets the following conditions:</img></img></p>
   <p>(i) <img width="197.91666666666666" src="https://html.scirp.org/file/1724162-rId32.svg?20250523033238">, for all <img width="39.91323210412148" src="https://html.scirp.org/file/1724162-rId41.svg?20250523033238">;</img></img></p>
   <p>(ii) <img width="263.8888888888889" src="https://html.scirp.org/file/1724162-rId43.svg?20250523033238">, for all <img width="53.772766695576756" src="https://html.scirp.org/file/1724162-rId45.svg?20250523033238">,</img></img></p>
   <p>then <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId47.svg?20250523033238"> is called a triangular α-orbital admissible mapping.</img></p>
   <p>Based on a certain understanding, below, we give the related concepts of b-metric-like-space.</p>
   <p>Definition 3. <xref ref-type="bibr" rid="scirp.142753-3">
     [3]
    </xref> Let <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId49.svg?20250523033238"> be a non-empty set and <img width="36.426712922810054" src="https://html.scirp.org/file/1724162-rId51.svg?20250523033238"> be a given real number. <img width="109.32754880694142" src="https://html.scirp.org/file/1724162-rId53.svg?20250523033238"> is a b-metric-like, if it meets the following conditions:</img></img></img></p>
   <p><img width="36.41092327698309" src="https://html.scirp.org/file/1724162-rId55.svg?20250523033238"> <img width="133.6225596529284" src="https://html.scirp.org/file/1724162-rId57.svg?20250523033238">;</img></img></p>
   <p><img width="38.17787418655098" src="https://html.scirp.org/file/1724162-rId59.svg?20250523033238"> <img width="118.00433839479392" src="https://html.scirp.org/file/1724162-rId61.svg?20250523033238">, for all <img width="53.772766695576756" src="https://html.scirp.org/file/1724162-rId45.svg?20250523033238">;</img></img></img></p>
   <p><img width="38.17787418655098" src="https://html.scirp.org/file/1724162-rId64.svg?20250523033238"> <img width="208.33333333333334" src="https://html.scirp.org/file/1724162-rId66.svg?20250523033238">, for all <img width="69.41431670281996" src="https://html.scirp.org/file/1724162-rId68.svg?20250523033238">,</img></img></img></p>
   <p>then <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId70.svg?20250523033238"> is said to be a b-metric-like space.</img></p>
   <p>Remark* <xref ref-type="bibr" rid="scirp.142753-3">
     [3]
    </xref> (i) If <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId72.svg?20250523033238"> is a b-metric-like, then the self-distance might not be zero for some <img width="39.91323210412148" src="https://html.scirp.org/file/1724162-rId41.svg?20250523033238">;</img></img></p>
   <p>(ii) Every b-metric is a b-metric-like, but the converse is not true in general. For example, the readers can refer to <xref ref-type="bibr" rid="scirp.142753-3">
     [3]
    </xref>.</p>
   <p>Example 1. Let <img width="83.29718004338395" src="https://html.scirp.org/file/1724162-rId75.svg?20250523033238">. Defined <img width="109.32754880694142" src="https://html.scirp.org/file/1724162-rId77.svg?20250523033238"> by:</img></img></p>
   <fig id="fig1" position="float">
    <label>Figure 1</label>
    <caption>
     <title><img width="156.25" src="https://html.scirp.org/file/1724162-rId81.svg?20250523033238" /><img width="145.7700650759219" src="https://html.scirp.org/file/1724162-rId83.svg?20250523033238" /><img width="161.38828633405637" src="https://html.scirp.org/file/1724162-rId85.svg?20250523033238" />It is obvious that <img width="19.07238838318162" src="https://html.scirp.org/file/1724162-rId87.svg?20250523033238"> is b-metric-like space with <img width="39.91323210412148" src="https://html.scirp.org/file/1724162-rId89.svg?20250523033238">. However it is not a b-metric space, indeed, <img width="107.59219088937093" src="https://html.scirp.org/file/1724162-rId91.svg?20250523033238">. </img></img></img>Definition 4. <xref ref-type="bibr" rid="scirp.142753-3">
       [3]
      </xref> Let <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId93.svg?20250523033238"> be a b-metric-like space.</img>(i) A sequence <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId95.svg?20250523033238"> in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId97.svg?20250523033238"> is said to be convergent to <img width="12.121212121212121" src="https://html.scirp.org/file/1724162-rId99.svg?20250523033238"> if <img width="145.7700650759219" src="https://html.scirp.org/file/1724162-rId101.svg?20250523033238">;</img></img></img></img>(ii) A sequence <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId95.svg?20250523033238"> in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId104.svg?20250523033238"> is said to be a Cauchy sequence if <img width="104.12147505422993" src="https://html.scirp.org/file/1724162-rId106.svg?20250523033238"> exists and be finite;</img></img></img>(iii) <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId108.svg?20250523033238"> is said to be complete if every Cauchy sequence <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId95.svg?20250523033238"> in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId111.svg?20250523033238"> converges to some point in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId113.svg?20250523033238"> such that <img width="260.3036876355748" src="https://html.scirp.org/file/1724162-rId115.svg?20250523033238">.</img></img></img></img></img>Proposition 1. <xref ref-type="bibr" rid="scirp.142753-3">
       [3]
      </xref> Let <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId117.svg?20250523033238"> be a b-metric-like space. If <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId95.svg?20250523033238"> is a sequence in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId120.svg?20250523033238"> such that <img width="109.32754880694142" src="https://html.scirp.org/file/1724162-rId122.svg?20250523033238">, then <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId95.svg?20250523033238"> has a unique limit <img width="12.121212121212121" src="https://html.scirp.org/file/1724162-rId125.svg?20250523033238">. </img></img></img></img></img></img>Definition 5. <xref ref-type="bibr" rid="scirp.142753-5">
       [5]
      </xref> Let <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId127.svg?20250523033238"> be a b-metric-like space and <img width="72.85342584562011" src="https://html.scirp.org/file/1724162-rId129.svg?20250523033238"> be a mapping. We say that <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId131.svg?20250523033238"> is continuous at <img width="12.121212121212121" src="https://html.scirp.org/file/1724162-rId125.svg?20250523033238">, if <img width="145.7700650759219" src="https://html.scirp.org/file/1724162-rId134.svg?20250523033238"> implies that <img width="182.29166666666666" src="https://html.scirp.org/file/1724162-rId136.svg?20250523033238">, for each sequence <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId95.svg?20250523033238"> in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId139.svg?20250523033238">.</img></img></img></img></img></img></img></img></title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>Theorem 2. <xref ref-type="bibr" rid="scirp.142753-11">
     [11]
    </xref> Let <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId141.svg?20250523033238"> be a complete b-metric space. If there exists <img width="43.365134431916736" src="https://html.scirp.org/file/1724162-rId143.svg?20250523033238"> such that <img width="72.85342584562011" src="https://html.scirp.org/file/1724162-rId145.svg?20250523033238"> satisfying the following conditions:</img></img></img></p>
   <p>(i) <img width="296.875" src="https://html.scirp.org/file/1724162-rId147.svg?20250523033238">, for all <img width="53.772766695576756" src="https://html.scirp.org/file/1724162-rId45.svg?20250523033238">;</img></img></p>
   <p>(ii) <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId150.svg?20250523033238"> is continuous or <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId152.svg?20250523033238"> or <img width="43.365134431916736" src="https://html.scirp.org/file/1724162-rId154.svg?20250523033238">, and</img></img></img></p>
   <fig id="fig2" position="float">
    <label>Figure 2</label>
    <caption>
     <title>where <img width="39.8959236773634" src="https://html.scirp.org/file/1724162-rId158.svg?20250523033238">, and <img width="107.6388888888889" src="https://html.scirp.org/file/1724162-rId160.svg?20250523033238">, with <img width="62.5" src="https://html.scirp.org/file/1724162-rId162.svg?20250523033238">, then <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId164.svg?20250523033238"> has a unique fixed point and <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId95.svg?20250523033238"> converges to some point <img width="15.611448395490026" src="https://html.scirp.org/file/1724162-rId167.svg?20250523033238"> in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId169.svg?20250523033238">, where <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId95.svg?20250523033238"> is produced by <img width="79.82646420824295" src="https://html.scirp.org/file/1724162-rId172.svg?20250523033238">, for all <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId174.svg?20250523033238">.</img></img></img></img></img></img></img></img></img></img>Definition 6. <xref ref-type="bibr" rid="scirp.142753-12">
       [12]
      </xref> Let <img width="109.32754880694142" src="https://html.scirp.org/file/1724162-rId176.svg?20250523033238"> be a function. If for every sequence <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId95.svg?20250523033238"> in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId179.svg?20250523033238"> such that <img width="95.44468546637744" src="https://html.scirp.org/file/1724162-rId181.svg?20250523033238">, for all <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId183.svg?20250523033238"> and <img width="67.67895878524946" src="https://html.scirp.org/file/1724162-rId185.svg?20250523033238">, implies that <img width="79.7918473547268" src="https://html.scirp.org/file/1724162-rId187.svg?20250523033238">, for all <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId189.svg?20250523033238">, we say that <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId191.svg?20250523033238"> is regular with respect to <img width="19.07238838318162" src="https://html.scirp.org/file/1724162-rId193.svg?20250523033238">. </img></img></img></img></img></img></img></img></img></img>Let <img width="104.12147505422993" src="https://html.scirp.org/file/1724162-rId195.svg?20250523033238"> satisfying that <img width="118.00433839479392" src="https://html.scirp.org/file/1724162-rId197.svg?20250523033238"> implies that <img width="71.14967462039046" src="https://html.scirp.org/file/1724162-rId199.svg?20250523033238">.</img></img></img>Theorem 3. <xref ref-type="bibr" rid="scirp.142753-12">
       [12]
      </xref> Let <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId201.svg?20250523033238"> be a complete metric space and <img width="72.85342584562011" src="https://html.scirp.org/file/1724162-rId203.svg?20250523033238"> be a mapping. If <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId205.svg?20250523033238"> satisfies the following conditions:</img></img></img>(i) <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId207.svg?20250523033238"> is triangular α-orbital admissible;</img>(ii) there exists <img width="46.85466377440347" src="https://html.scirp.org/file/1724162-rId209.svg?20250523033238"> such that <img width="93.70932754880694" src="https://html.scirp.org/file/1724162-rId211.svg?20250523033238">;</img></img>(iii) one of the conditions satisfies:(iii<sub>a</sub>) <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId213.svg?20250523033238"> is continuous,</img>(iii<sub>b</sub>) <img width="20.80624187256177" src="https://html.scirp.org/file/1724162-rId215.svg?20250523033238"> is continuous and <img width="83.29718004338395" src="https://html.scirp.org/file/1724162-rId217.svg?20250523033238"> for all <img width="43.365134431916736" src="https://html.scirp.org/file/1724162-rId219.svg?20250523033238"> with <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId221.svg?20250523033238">,</img></img></img></img>(iii<sub>c</sub>) <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId223.svg?20250523033238"> is regular with respect to <img width="19.07238838318162" src="https://html.scirp.org/file/1724162-rId225.svg?20250523033238">;</img></img></title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>(iv) <img width="265.625" src="https://html.scirp.org/file/1724162-rId227.svg?20250523033238">, for all <img width="53.772766695576756" src="https://html.scirp.org/file/1724162-rId229.svg?20250523033238">,</img></img></p>
   <p>and</p>
   <fig id="fig3" position="float">
    <label>Figure 3</label>
    <caption>
     <title>where <img width="39.8959236773634" src="https://html.scirp.org/file/1724162-rId233.svg?20250523033238">, <img width="147.5054229934924" src="https://html.scirp.org/file/1724162-rId235.svg?20250523033238"> with <img width="62.5" src="https://html.scirp.org/file/1724162-rId237.svg?20250523033238">, then <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId239.svg?20250523033238"> has a fixed point in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId241.svg?20250523033238">. </img></img></img></img></img>Definition 7. <xref ref-type="bibr" rid="scirp.142753-13">
       [13]
      </xref> Assume that <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId243.svg?20250523033238"> be a metric space. If the following conditions are met:</img>(a) <img width="182.29166666666666" src="https://html.scirp.org/file/1724162-rId245.svg?20250523033238"> for all <img width="69.41431670281996" src="https://html.scirp.org/file/1724162-rId247.svg?20250523033238">;</img></img>(b) <img width="133.6225596529284" src="https://html.scirp.org/file/1724162-rId249.svg?20250523033238"> is lower semi-continuous for any <img width="39.91323210412148" src="https://html.scirp.org/file/1724162-rId251.svg?20250523033238">;</img></img>(c) there exists <img width="43.365134431916736" src="https://html.scirp.org/file/1724162-rId253.svg?20250523033238"> such that <img width="79.7918473547268" src="https://html.scirp.org/file/1724162-rId255.svg?20250523033238"> and <img width="79.7918473547268" src="https://html.scirp.org/file/1724162-rId257.svg?20250523033238"> imply <img width="83.29718004338395" src="https://html.scirp.org/file/1724162-rId259.svg?20250523033238"> for any <img width="41.63052905464007" src="https://html.scirp.org/file/1724162-rId261.svg?20250523033238">, then a function <img width="128.4164859002169" src="https://html.scirp.org/file/1724162-rId263.svg?20250523033238"> is called a w-distance on <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId265.svg?20250523033238">. </img></img></img></img></img></img></img>Lemma 4. <xref ref-type="bibr" rid="scirp.142753-13">
       [13]
      </xref> <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId267.svg?20250523033238"> is a metric space equipped with a w-distance <img width="17.338534893801473" src="https://html.scirp.org/file/1724162-rId269.svg?20250523033238">, <img width="34.69210754553339" src="https://html.scirp.org/file/1724162-rId271.svg?20250523033238"> is a sequence in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId273.svg?20250523033238">, and it satisfies that for any <img width="39.91323210412148" src="https://html.scirp.org/file/1724162-rId275.svg?20250523033238">, there exists <img width="57.291666666666664" src="https://html.scirp.org/file/1724162-rId277.svg?20250523033238"> such that <img width="93.70932754880694" src="https://html.scirp.org/file/1724162-rId279.svg?20250523033238"> (or <img width="131.88720173535793" src="https://html.scirp.org/file/1724162-rId281.svg?20250523033238">) for <img width="81.56182212581345" src="https://html.scirp.org/file/1724162-rId283.svg?20250523033238">. Then <img width="34.69210754553339" src="https://html.scirp.org/file/1724162-rId285.svg?20250523033238"> is a Cauchy sequence.</img></img></img></img></img></img></img></img></img></img>Lemma 5. <xref ref-type="bibr" rid="scirp.142753-13">
       [13]
      </xref> Suppose that <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId287.svg?20250523033238"> is a metric space, and <img width="17.338534893801473" src="https://html.scirp.org/file/1724162-rId289.svg?20250523033238"> is a w-distance on <img width="88.50325379609545" src="https://html.scirp.org/file/1724162-rId291.svg?20250523033238"> and <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId293.svg?20250523033238"> are three sequences in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId295.svg?20250523033238">, <img width="69.41431670281996" src="https://html.scirp.org/file/1724162-rId297.svg?20250523033238">.</img></img></img></img></img></img>(i) If <img width="93.70932754880694" src="https://html.scirp.org/file/1724162-rId299.svg?20250523033238"> and <img width="91.97396963123644" src="https://html.scirp.org/file/1724162-rId301.svg?20250523033238">, then <img width="39.8959236773634" src="https://html.scirp.org/file/1724162-rId303.svg?20250523033238"> In particular, if <img width="81.56182212581345" src="https://html.scirp.org/file/1724162-rId305.svg?20250523033238"> and <img width="78.09110629067246" src="https://html.scirp.org/file/1724162-rId307.svg?20250523033238">, then <img width="41.61248374512354" src="https://html.scirp.org/file/1724162-rId309.svg?20250523033238">;</img></img></img></img></img></img>(ii) If <img width="100.65075921908894" src="https://html.scirp.org/file/1724162-rId311.svg?20250523033238"> and <img width="91.97396963123644" src="https://html.scirp.org/file/1724162-rId301.svg?20250523033238">, then <img width="20.824295010845987" src="https://html.scirp.org/file/1724162-rId314.svg?20250523033238"> converges to <img width="12.121212121212121" src="https://html.scirp.org/file/1724162-rId316.svg?20250523033238">;</img></img></img></img>(iii) If <img width="100.65075921908894" src="https://html.scirp.org/file/1724162-rId318.svg?20250523033238"> and <img width="97.18004338394793" src="https://html.scirp.org/file/1724162-rId320.svg?20250523033238">, then <img width="67.64960971379011" src="https://html.scirp.org/file/1724162-rId322.svg?20250523033238"> converges to 0. </img></img></img></title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>Definition 8. <xref ref-type="bibr" rid="scirp.142753-15">
     [15]
    </xref> Suppose that <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId324.svg?20250523033238"> is a b-metric-like space and a nonempty set <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId326.svg?20250523033238">, <img width="46.834345186470074" src="https://html.scirp.org/file/1724162-rId328.svg?20250523033238"> is the set of all the fixed point of mapping <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId330.svg?20250523033238"> and <img width="72.85342584562011" src="https://html.scirp.org/file/1724162-rId332.svg?20250523033238"> is a mapping. Define <img width="13.870827915041179" src="https://html.scirp.org/file/1724162-rId334.svg?20250523033238"> by </img></img></img></img></img></img></p>
   <fig id="fig4" position="float">
    <label>Figure 4</label>
    <caption>
     <title>(1) A circle <img width="185.68329718004338" src="https://html.scirp.org/file/1724162-rId338.svg?20250523033238"> in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId340.svg?20250523033238"> is said to be a fixed circle of <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId342.svg?20250523033238"> if and only if <img width="95.4861111111111" src="https://html.scirp.org/file/1724162-rId344.svg?20250523033238">.</img></img></img></img>(2) A disc <img width="187.5" src="https://html.scirp.org/file/1724162-rId346.svg?20250523033238"> in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId348.svg?20250523033238"> is said to be a fixed disc of <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId350.svg?20250523033238"> if and only if <img width="97.22222222222223" src="https://html.scirp.org/file/1724162-rId352.svg?20250523033238">. </img></img></img></img>Definition 9. <xref ref-type="bibr" rid="scirp.142753-16">
       [16]
      </xref> A simulation function is a mapping <img width="157.91757049891538" src="https://html.scirp.org/file/1724162-rId354.svg?20250523033238"> satisfying the following conditions:</img>(i) <img width="97.18004338394793" src="https://html.scirp.org/file/1724162-rId356.svg?20250523033238"> for all <img width="52.060737527114966" src="https://html.scirp.org/file/1724162-rId358.svg?20250523033238">;</img></img>(ii) if <img width="52.083333333333336" src="https://html.scirp.org/file/1724162-rId360.svg?20250523033238"> are sequences in <img width="46.834345186470074" src="https://html.scirp.org/file/1724162-rId362.svg?20250523033238"> such that <img width="128.4164859002169" src="https://html.scirp.org/file/1724162-rId364.svg?20250523033238">, then </img></img></img><img width="145.83333333333334" src="https://html.scirp.org/file/1724162-rId366.svg?20250523033238" />3. Main ResultsIn the section, we present the main results by the following definitions.Let <img width="116.31944444444444" src="https://html.scirp.org/file/1724162-rId368.svg?20250523033239"> satisfying <img width="125.0" src="https://html.scirp.org/file/1724162-rId370.svg?20250523033239"> implies that <img width="71.14967462039046" src="https://html.scirp.org/file/1724162-rId372.svg?20250523033239">. And if <img width="39.91323210412148" src="https://html.scirp.org/file/1724162-rId374.svg?20250523033239">, then <img width="67.64960971379011" src="https://html.scirp.org/file/1724162-rId376.svg?20250523033239">, where <img width="36.426712922810054" src="https://html.scirp.org/file/1724162-rId378.svg?20250523033239">.</img></img></img></img></img></img>3.1. Fixed Circle Result</title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>In this part, we get a new fixed circle result through the new contractions.</p>
   <p>Now, we present the definitions of fixed circle and fixed disc in b-metric-like spaces.</p>
   <p>Definition 10. Suppose that <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId380.svg?20250523033239"> is a b-metric-like space with a nonempty set <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId382.svg?20250523033239">, <img width="17.346053772766695" src="https://html.scirp.org/file/1724162-rId384.svg?20250523033239"> is a point in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId386.svg?20250523033239"> and <img width="130.1518438177874" src="https://html.scirp.org/file/1724162-rId388.svg?20250523033239"> is a function. The mapping <img width="72.85342584562011" src="https://html.scirp.org/file/1724162-rId390.svg?20250523033239"> is α-<img width="17.346053772766695" src="https://html.scirp.org/file/1724162-rId384.svg?20250523033239">-admissible if </img></img></img></img></img></img></img></p>
   <fig id="fig5" position="float">
    <label>Figure 5</label>
    <caption>
     <title>Inspired by the above results, in virtue of α-<img width="17.346053772766695" src="https://html.scirp.org/file/1724162-rId384.svg?20250523033239">-admissible mapping, we obtain new fixed circle and fixed disc results in b-metric-like spaces. </img>Theorem 6. Suppose that <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId396.svg?20250523033239"> is a b-metric-like space with a nonempty set <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId398.svg?20250523033239"> and <img width="130.1518438177874" src="https://html.scirp.org/file/1724162-rId400.svg?20250523033239"> is a function. If the mapping <img width="72.85342584562011" src="https://html.scirp.org/file/1724162-rId402.svg?20250523033239"> is α-<img width="17.346053772766695" src="https://html.scirp.org/file/1724162-rId404.svg?20250523033239">-admissible and satisfies</img></img></img></img></img><img width="432.2916666666667" src="https://html.scirp.org/file/1724162-rId406.svg?20250523033239">(1)</img>and<img width="635.4166666666666" src="https://html.scirp.org/file/1724162-rId408.svg?20250523033239" />where <img width="39.8959236773634" src="https://html.scirp.org/file/1724162-rId410.svg?20250523033239">, <img width="125.0" src="https://html.scirp.org/file/1724162-rId412.svg?20250523033239"> with <img width="81.56182212581345" src="https://html.scirp.org/file/1724162-rId414.svg?20250523033239">. In addition, <img width="97.18004338394793" src="https://html.scirp.org/file/1724162-rId416.svg?20250523033239"> and <img width="79.7918473547268" src="https://html.scirp.org/file/1724162-rId418.svg?20250523033239">, for all <img width="55.50737207285342" src="https://html.scirp.org/file/1724162-rId420.svg?20250523033239">, then <img width="34.69210754553339" src="https://html.scirp.org/file/1724162-rId422.svg?20250523033239"> is a fixed circle of <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId424.svg?20250523033239">.</img></img></img></img></img></img></img></img>Proof. Suppose that there exists <img width="55.50737207285342" src="https://html.scirp.org/file/1724162-rId420.svg?20250523033239"> such that <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId427.svg?20250523033239">. And from (1), <img width="97.18004338394793" src="https://html.scirp.org/file/1724162-rId416.svg?20250523033239">, <img width="79.7918473547268" src="https://html.scirp.org/file/1724162-rId418.svg?20250523033239">, for all <img width="55.50737207285342" src="https://html.scirp.org/file/1724162-rId420.svg?20250523033239"> and <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId432.svg?20250523033239"> is α-<img width="17.346053772766695" src="https://html.scirp.org/file/1724162-rId434.svg?20250523033239">-admissible, we obtain</img></img></img></img></img></img></img><img width="442.7083333333333" src="https://html.scirp.org/file/1724162-rId436.svg?20250523033239">(2)</img>where<img width="342.0138888888889" src="https://html.scirp.org/file/1724162-rId438.svg?20250523033239" /></title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>Case 1. <img width="39.8959236773634" src="https://html.scirp.org/file/1724162-rId440.svg?20250523033239">.</img></p>
   <p>By (2), it follows that</p>
   <fig id="fig6" position="float">
    <label>Figure 6</label>
    <caption>
     <title>Both sides of the above inequality are simultaneously raised to the <img width="13.876843018213355" src="https://html.scirp.org/file/1724162-rId444.svg?20250523033239"> power, and we get</img><img width="284.72222222222223" src="https://html.scirp.org/file/1724162-rId446.svg?20250523033239" />Taking account of the definition of <img width="13.870827915041179" src="https://html.scirp.org/file/1724162-rId448.svg?20250523033239">, we have </img><img width="435.7638888888889" src="https://html.scirp.org/file/1724162-rId450.svg?20250523033239" />or<img width="211.80555555555554" src="https://html.scirp.org/file/1724162-rId452.svg?20250523033239" />This is contradictory with <img width="83.29718004338395" src="https://html.scirp.org/file/1724162-rId454.svg?20250523033239">.</img>Case 2. <img width="39.8959236773634" src="https://html.scirp.org/file/1724162-rId456.svg?20250523033239">.</img>It deduces from (2) that<img width="90.23861171366595" src="https://html.scirp.org/file/1724162-rId458.svg?20250523033239" /></title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>This is a contradiction. So, in all cases, we have <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId460.svg?20250523033239">, for all <img width="55.50737207285342" src="https://html.scirp.org/file/1724162-rId462.svg?20250523033239">. The proof is completed. □</img></img></p>
   <p>Corollary 1. Suppose that <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId464.svg?20250523033239"> is a b-metric-like space with a nonempty set <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId466.svg?20250523033239"> and <img width="130.1518438177874" src="https://html.scirp.org/file/1724162-rId468.svg?20250523033239"> is a function. If mapping <img width="72.85342584562011" src="https://html.scirp.org/file/1724162-rId470.svg?20250523033239"> is α-<img width="17.346053772766695" src="https://html.scirp.org/file/1724162-rId472.svg?20250523033239">-admissible and satisfies</img></img></img></img></img></p>
   <fig id="fig7" position="float">
    <label>Figure 7</label>
    <caption>
     <title>and<img width="635.4166666666666" src="https://html.scirp.org/file/1724162-rId476.svg?20250523033239" />where <img width="39.8959236773634" src="https://html.scirp.org/file/1724162-rId410.svg?20250523033239">, <img width="125.0" src="https://html.scirp.org/file/1724162-rId412.svg?20250523033239"> with <img width="81.56182212581345" src="https://html.scirp.org/file/1724162-rId480.svg?20250523033239">. In addition, <img width="97.18004338394793" src="https://html.scirp.org/file/1724162-rId482.svg?20250523033239"> and <img width="79.7918473547268" src="https://html.scirp.org/file/1724162-rId484.svg?20250523033239">, for all <img width="55.50737207285342" src="https://html.scirp.org/file/1724162-rId486.svg?20250523033239">, then <img width="34.69210754553339" src="https://html.scirp.org/file/1724162-rId488.svg?20250523033239"> is fixed disc of <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId490.svg?20250523033239">.</img></img></img></img></img></img></img></img><xref ref-type="bibr" rid="scirp.142753-"></xref>Proof. The result follows by a similar discussion method as Theorem 6. The proof is completed. □3.2. Fixed Point ResultsIn this part, we get some new fixed point results through some new contractions.Definition 11. Let <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId492.svg?20250523033240"> be a b-metric-like space. A mapping <img width="72.85342584562011" src="https://html.scirp.org/file/1724162-rId494.svg?20250523033240"> is called an α-β-admissible contraction if there exists a function <img width="109.32754880694142" src="https://html.scirp.org/file/1724162-rId496.svg?20250523033240"> such that</img></img></img><img width="381.9444444444444" src="https://html.scirp.org/file/1724162-rId498.svg?20250523033240">(3)</img>and<img width="611.1111111111112" src="https://html.scirp.org/file/1724162-rId500.svg?20250523033240" /></title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>where <img width="39.8959236773634" src="https://html.scirp.org/file/1724162-rId410.svg?20250523033240">, <img width="125.0" src="https://html.scirp.org/file/1724162-rId412.svg?20250523033240"> with <img width="62.5" src="https://html.scirp.org/file/1724162-rId504.svg?20250523033240">. </img></img></img></p>
   <p>Definition 12. <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId506.svg?20250523033240"> be a complete b-metric like space with a w-distance <img width="17.338534893801473" src="https://html.scirp.org/file/1724162-rId508.svg?20250523033240">, <img width="36.426712922810054" src="https://html.scirp.org/file/1724162-rId510.svg?20250523033240">. <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId512.svg?20250523033240"> is called an admissible β-ζ-contraction if there exists a function <img width="128.4164859002169" src="https://html.scirp.org/file/1724162-rId514.svg?20250523033240"> such that</img></img></img></img></img></p>
   <p><img width="423.6111111111111" src="https://html.scirp.org/file/1724162-rId516.svg?20250523033240">(4)</img></p>
   <p>and</p>
   <fig id="fig8" position="float">
    <label>Figure 8</label>
    <caption>
     <title>where <img width="39.8959236773634" src="https://html.scirp.org/file/1724162-rId410.svg?20250523033240">, <img width="125.0" src="https://html.scirp.org/file/1724162-rId412.svg?20250523033240"> with <img width="62.5" src="https://html.scirp.org/file/1724162-rId504.svg?20250523033240">.</img></img></img>Theorem 7. Let <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId523.svg?20250523033240"> be a complete b-metric-like space with a w-distance <img width="17.338534893801473" src="https://html.scirp.org/file/1724162-rId525.svg?20250523033240">, <img width="36.426712922810054" src="https://html.scirp.org/file/1724162-rId527.svg?20250523033240"> and <img width="72.85342584562011" src="https://html.scirp.org/file/1724162-rId529.svg?20250523033240"> be an admissible β-ζ-contraction. If the following conditions hold:</img></img></img></img>(i) <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId531.svg?20250523033240"> is triangular α-orbital admissible;</img>(ii) there exists <img width="46.85466377440347" src="https://html.scirp.org/file/1724162-rId533.svg?20250523033240"> such that <img width="93.70932754880694" src="https://html.scirp.org/file/1724162-rId535.svg?20250523033240">;</img></img>(iii) <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId537.svg?20250523033240"> is continuous;</img>(iv) <img width="76.35574837310196" src="https://html.scirp.org/file/1724162-rId539.svg?20250523033240"> for any <img width="36.426712922810054" src="https://html.scirp.org/file/1724162-rId541.svg?20250523033240">,</img></img>then <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId543.svg?20250523033240"> has a unique fixed point <img width="17.3235166738848" src="https://html.scirp.org/file/1724162-rId545.svg?20250523033240">. </img></img>Proof. Step 1. we will get <img width="95.44468546637744" src="https://html.scirp.org/file/1724162-rId547.svg?20250523033240">, <img width="88.50325379609545" src="https://html.scirp.org/file/1724162-rId549.svg?20250523033240">, for all <img width="46.834345186470074" src="https://html.scirp.org/file/1724162-rId551.svg?20250523033240">, <img width="125.0" src="https://html.scirp.org/file/1724162-rId553.svg?20250523033240">, <img width="125.0" src="https://html.scirp.org/file/1724162-rId555.svg?20250523033240">.</img></img></img></img></img>From (ii), there exists <img width="46.85466377440347" src="https://html.scirp.org/file/1724162-rId557.svg?20250523033240"> such that <img width="93.70932754880694" src="https://html.scirp.org/file/1724162-rId559.svg?20250523033240">. Define a sequence <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId561.svg?20250523033240"> by <img width="65.94360086767897" src="https://html.scirp.org/file/1724162-rId563.svg?20250523033240">, for all <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId565.svg?20250523033240">. By (i) and induction, it follows easily that </img></img></img></img></img><img width="192.6247288503254" src="https://html.scirp.org/file/1724162-rId567.svg?20250523033240">(5)</img></title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>and</p>
   <p><img width="187.5" src="https://html.scirp.org/file/1724162-rId569.svg?20250523033240">(6)</img></p>
   <p>Case 1. There exists <img width="52.060737527114966" src="https://html.scirp.org/file/1724162-rId571.svg?20250523033240"> such that <img width="137.0932754880694" src="https://html.scirp.org/file/1724162-rId573.svg?20250523033240">.</img></img></p>
   <p>If <img width="178.81944444444446" src="https://html.scirp.org/file/1724162-rId575.svg?20250523033240">, then <img width="336.65943600867683" src="https://html.scirp.org/file/1724162-rId577.svg?20250523033240">. Therefore, by (c) of Definition 7, we have the limit of <img width="118.00433839479392" src="https://html.scirp.org/file/1724162-rId579.svg?20250523033240">, and taking the limits at both sides of the inequality, we get <img width="121.47505422993491" src="https://html.scirp.org/file/1724162-rId581.svg?20250523033240">, so that <img width="131.88720173535793" src="https://html.scirp.org/file/1724162-rId583.svg?20250523033240">. When <img width="69.44444444444444" src="https://html.scirp.org/file/1724162-rId585.svg?20250523033240">, it is a constant sequence, which is <img width="31.236442516268983" src="https://html.scirp.org/file/1724162-rId587.svg?20250523033240"> or <img width="34.69210754553339" src="https://html.scirp.org/file/1724162-rId589.svg?20250523033240">. Then </img></img></img></img></img></img></img></img></p>
   <fig id="fig9" position="float">
    <label>Figure 9</label>
    <caption>
     <title>Let <img width="79.7918473547268" src="https://html.scirp.org/file/1724162-rId593.svg?20250523033240"> in (4), we have </img><img width="470.4861111111111" src="https://html.scirp.org/file/1724162-rId595.svg?20250523033240">(7)</img>It follows that<img width="538.1944444444445" src="https://html.scirp.org/file/1724162-rId597.svg?20250523033240" />where<img width="524.3055555555555" src="https://html.scirp.org/file/1724162-rId599.svg?20250523033240">(8)</img>that is <img width="204.77223427331887" src="https://html.scirp.org/file/1724162-rId601.svg?20250523033240">, it is a contraction. So <img width="121.47505422993491" src="https://html.scirp.org/file/1724162-rId603.svg?20250523033240">. Continuing this process, we can get <img width="125.0" src="https://html.scirp.org/file/1724162-rId605.svg?20250523033240">. Similarly, we can prove <img width="125.0" src="https://html.scirp.org/file/1724162-rId607.svg?20250523033240">. Case 2. <img width="111.06290672451192" src="https://html.scirp.org/file/1724162-rId609.svg?20250523033240">.</img></img></img></img></img>Let <img width="93.75" src="https://html.scirp.org/file/1724162-rId611.svg?20250523033240"> in (4), then we have</img><img width="399.3055555555556" src="https://html.scirp.org/file/1724162-rId613.svg?20250523033240" />that is</title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p><img width="454.8611111111111" src="https://html.scirp.org/file/1724162-rId615.svg?20250523033240">(9)</img></p>
   <p>where</p>
   <p><img width="526.0416666666666" src="https://html.scirp.org/file/1724162-rId617.svg?20250523033240">(10)</img></p>
   <p>By (9), we have <img width="236.00867678958784" src="https://html.scirp.org/file/1724162-rId619.svg?20250523033240">. Then </img></p>
   <fig id="fig10" position="float">
    <label>Figure 10</label>
    <caption>
     <title>Then, we can get <img width="133.6225596529284" src="https://html.scirp.org/file/1724162-rId623.svg?20250523033240"> by definition of <img width="19.080659150043367" src="https://html.scirp.org/file/1724162-rId625.svg?20250523033240">, and so <img width="125.0" src="https://html.scirp.org/file/1724162-rId627.svg?20250523033240">. By the same way, we can get <img width="125.0" src="https://html.scirp.org/file/1724162-rId629.svg?20250523033240">.</img></img></img></img>To sum up, we have<img width="138.82863340563992" src="https://html.scirp.org/file/1724162-rId631.svg?20250523033240" />Step 2. we suffice to prove that <img width="119.73969631236442" src="https://html.scirp.org/file/1724162-rId633.svg?20250523033240">.</img>Suppose on the contrary that there exist <img width="41.63052905464007" src="https://html.scirp.org/file/1724162-rId635.svg?20250523033240"> and two sequences <img width="95.44468546637744" src="https://html.scirp.org/file/1724162-rId637.svg?20250523033240"> such that</img></img><img width="284.72222222222223" src="https://html.scirp.org/file/1724162-rId639.svg?20250523033240">(11)</img>where <img width="72.88503253796095" src="https://html.scirp.org/file/1724162-rId641.svg?20250523033240">. Then</img><img width="347.22222222222223" src="https://html.scirp.org/file/1724162-rId643.svg?20250523033240">(12)</img>By the triangle inequality, we have<img width="347.22222222222223" src="https://html.scirp.org/file/1724162-rId645.svg?20250523033240">(13)</img></title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>Taking the limits on both sides of (13), and combining it with (12), we can get</p>
   <p><img width="171.875" src="https://html.scirp.org/file/1724162-rId647.svg?20250523033240">(14)</img></p>
   <p>and</p>
   <p><img width="267.3611111111111" src="https://html.scirp.org/file/1724162-rId649.svg?20250523033240">(15)</img></p>
   <p>Then, <img width="256.9444444444444" src="https://html.scirp.org/file/1724162-rId651.svg?20250523033240"> and</img></p>
   <p><img width="222.2222222222222" src="https://html.scirp.org/file/1724162-rId653.svg?20250523033240">(16)</img></p>
   <p>Let <img width="53.79609544468546" src="https://html.scirp.org/file/1724162-rId655.svg?20250523033240">, <img width="67.67895878524946" src="https://html.scirp.org/file/1724162-rId657.svg?20250523033240"> in (4), where <img width="114.53362255965293" src="https://html.scirp.org/file/1724162-rId659.svg?20250523033240"> and by (6), it follows that</img></img></img></p>
   <p><img width="515.625" src="https://html.scirp.org/file/1724162-rId661.svg?20250523033240">(17)</img></p>
   <p>Then, we have</p>
   <p><img width="493.0555555555556" src="https://html.scirp.org/file/1724162-rId663.svg?20250523033240">(18)</img></p>
   <p>where</p>
   <p><img width="519.0972222222222" src="https://html.scirp.org/file/1724162-rId665.svg?20250523033240">(19)</img></p>
   <p><img width="454.8611111111111" src="https://html.scirp.org/file/1724162-rId667.svg?20250523033240">(20)</img></p>
   <p>Taking the upper limits in (19), we have</p>
   <p><img width="227.43055555555554" src="https://html.scirp.org/file/1724162-rId669.svg?20250523033240">(21)</img></p>
   <p>Now, we take the upper limits on the both sides of (18), that is</p>
   <fig id="fig11" position="float">
    <label>Figure 11</label>
    <caption>
     <title>By (16) and (21), thus it can be seen that<img width="248.26388888888889" src="https://html.scirp.org/file/1724162-rId673.svg?20250523033240" />and then<img width="220.48611111111111" src="https://html.scirp.org/file/1724162-rId675.svg?20250523033240" />By definition of <img width="19.080659150043367" src="https://html.scirp.org/file/1724162-rId677.svg?20250523033240">, we can get</img><img width="164.93055555555554" src="https://html.scirp.org/file/1724162-rId679.svg?20250523033240">(22)</img>Indeed, taking in (20), (22) hold. Taking the limits in (19), by (22), we can get<img width="159.7222222222222" src="https://html.scirp.org/file/1724162-rId681.svg?20250523033240">(23)</img>By <img width="38.17787418655098" src="https://html.scirp.org/file/1724162-rId683.svg?20250523033240">, we have</img><img width="454.8611111111111" src="https://html.scirp.org/file/1724162-rId685.svg?20250523033240" /></title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>This is a contradiction. Therefore, <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId687.svg?20250523033240"> is a Cauchy sequence. </img></p>
   <p>Step 3. We prove the existence of fixed points.</p>
   <p>Since <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId689.svg?20250523033240"> is <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId691.svg?20250523033240"> complete, there exists <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId693.svg?20250523033240"> such that <img width="72.88503253796095" src="https://html.scirp.org/file/1724162-rId695.svg?20250523033240">. And by (iv), we have </img></img></img></img></p>
   <p><img width="251.73611111111111" src="https://html.scirp.org/file/1724162-rId697.svg?20250523033240">(24)</img></p>
   <p>The proof is completed. □</p>
   <p>Theorem 8. When the condition (iv) is removed in Theorem 7, it can also be proved that <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId699.svg?20250523033240"> has a fixed point <img width="17.3235166738848" src="https://html.scirp.org/file/1724162-rId701.svg?20250523033240">.</img></img></p>
   <p>Proof. Since <img width="118.00433839479392" src="https://html.scirp.org/file/1724162-rId703.svg?20250523033240">, for each <img width="41.63052905464007" src="https://html.scirp.org/file/1724162-rId705.svg?20250523033240">, there exists <img width="57.291666666666664" src="https://html.scirp.org/file/1724162-rId707.svg?20250523033240"> such that <img width="91.97396963123644" src="https://html.scirp.org/file/1724162-rId709.svg?20250523033240"> for all <img width="71.14967462039046" src="https://html.scirp.org/file/1724162-rId711.svg?20250523033240">. As <img width="53.772766695576756" src="https://html.scirp.org/file/1724162-rId713.svg?20250523033240"> and <img width="48.56895056374675" src="https://html.scirp.org/file/1724162-rId715.svg?20250523033240"> is lower semicontinuous, we get</img></img></img></img></img></img></img></p>
   <p><img width="242.95010845986982" src="https://html.scirp.org/file/1724162-rId717.svg?20250523033240">(25)</img></p>
   <p>Taking the limits on both sides of (25), we obtain</p>
   <p><img width="119.73969631236442" src="https://html.scirp.org/file/1724162-rId719.svg?20250523033240">(26)</img></p>
   <p>Next, we will prove that <img width="124.94577006507593" src="https://html.scirp.org/file/1724162-rId721.svg?20250523033240">. It can be divided into the following two cases.</img></p>
   <p>Case 1. <img width="107.6388888888889" src="https://html.scirp.org/file/1724162-rId723.svg?20250523033240">.</img></p>
   <p>Suppose that there exists <img width="20.824295010845987" src="https://html.scirp.org/file/1724162-rId725.svg?20250523033240"> such that <img width="131.88720173535793" src="https://html.scirp.org/file/1724162-rId727.svg?20250523033240">, and <img width="140.56399132321042" src="https://html.scirp.org/file/1724162-rId729.svg?20250523033240">, by (c), we can conclude that <img width="98.91540130151843" src="https://html.scirp.org/file/1724162-rId731.svg?20250523033240">, it says that <img width="55.483311660164716" src="https://html.scirp.org/file/1724162-rId733.svg?20250523033240">. If <img width="88.54166666666667" src="https://html.scirp.org/file/1724162-rId735.svg?20250523033240"> for all <img width="46.85466377440347" src="https://html.scirp.org/file/1724162-rId737.svg?20250523033240">,</img></img></img></img></img></img></img></p>
   <p><img width="355.90277777777777" src="https://html.scirp.org/file/1724162-rId739.svg?20250523033240">(27)</img></p>
   <p>that is <img width="312.5" src="https://html.scirp.org/file/1724162-rId741.svg?20250523033240">, where</img></p>
   <p><img width="621.5277777777778" src="https://html.scirp.org/file/1724162-rId743.svg?20250523033240">(28)</img></p>
   <p>Then, we can conclude that</p>
   <fig id="fig12" position="float">
    <label>Figure 12</label>
    <caption>
     <title>Then, <img width="248.26388888888889" src="https://html.scirp.org/file/1724162-rId747.svg?20250523033240">, that is <img width="124.94577006507593" src="https://html.scirp.org/file/1724162-rId749.svg?20250523033240">. By (i) of Lemma 5, we have</img></img><img width="59.00216919739696" src="https://html.scirp.org/file/1724162-rId751.svg?20250523033240" />Case 2. <img width="107.6388888888889" src="https://html.scirp.org/file/1724162-rId753.svg?20250523033240">.</img>This is easy to prove the above results. The proof is completed. □Example 2 Let <img width="67.64960971379011" src="https://html.scirp.org/file/1724162-rId755.svg?20250523033240"> be endowed with the usual metric <img width="102.43055555555556" src="https://html.scirp.org/file/1724162-rId757.svg?20250523033240">, and let <img width="126.68112798264642" src="https://html.scirp.org/file/1724162-rId759.svg?20250523033240"> for <img width="53.772766695576756" src="https://html.scirp.org/file/1724162-rId761.svg?20250523033240">. <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId763.svg?20250523033240"> is a mapping defined as follows: </img></img></img></img></img><img width="185.68329718004338" src="https://html.scirp.org/file/1724162-rId765.svg?20250523033240" />Take <img width="38.17787418655098" src="https://html.scirp.org/file/1724162-rId767.svg?20250523033240"> and <img width="53.772766695576756" src="https://html.scirp.org/file/1724162-rId769.svg?20250523033240"> as follows:</img></img><img width="201.38888888888889" src="https://html.scirp.org/file/1724162-rId771.svg?20250523033240" />and<img width="229.16666666666666" src="https://html.scirp.org/file/1724162-rId773.svg?20250523033240" /></title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>It is obvious that <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId775.svg?20250523033240"> is a complete b-metric-like space with <img width="39.91323210412148" src="https://html.scirp.org/file/1724162-rId777.svg?20250523033240">. Let <img width="57.291666666666664" src="https://html.scirp.org/file/1724162-rId779.svg?20250523033240">, <img width="48.590021691973966" src="https://html.scirp.org/file/1724162-rId781.svg?20250523033240"> and <img width="88.54166666666667" src="https://html.scirp.org/file/1724162-rId783.svg?20250523033240">. Now we show that <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId785.svg?20250523033240"> is an admissible hybrid Geraghty contraction. Indeed,</img></img></img></img></img></img></p>
   <p>(i) if <img width="62.47288503253797" src="https://html.scirp.org/file/1724162-rId787.svg?20250523033240">, <img width="95.44468546637744" src="https://html.scirp.org/file/1724162-rId789.svg?20250523033240">, then (4) holds clearly.</img></img></p>
   <p>(ii) if <img width="85.03253796095444" src="https://html.scirp.org/file/1724162-rId791.svg?20250523033240"> with <img width="36.41092327698309" src="https://html.scirp.org/file/1724162-rId793.svg?20250523033240"> or <img width="85.03253796095444" src="https://html.scirp.org/file/1724162-rId795.svg?20250523033240"> with <img width="36.426712922810054" src="https://html.scirp.org/file/1724162-rId797.svg?20250523033240">, </img></img></img></img></p>
   <fig id="fig13" position="float">
    <label>Figure 13</label>
    <caption>
     <title>(iii) if <img width="71.18055555555556" src="https://html.scirp.org/file/1724162-rId801.svg?20250523033240">, <img width="72.88503253796095" src="https://html.scirp.org/file/1724162-rId803.svg?20250523033240"> or <img width="74.62039045553145" src="https://html.scirp.org/file/1724162-rId805.svg?20250523033240">, <img width="71.18055555555556" src="https://html.scirp.org/file/1724162-rId807.svg?20250523033240">, then <img width="79.7918473547268" src="https://html.scirp.org/file/1724162-rId809.svg?20250523033240">, that is (4) holds.</img></img></img></img></img>In all cases, (4) is satisfied. Thus, <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId811.svg?20250523033240"> is an β-ζ contraction and it satisfies all conditions of Theorem 7. So <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId813.svg?20250523033240"> has a fixed point <img width="41.63052905464007" src="https://html.scirp.org/file/1724162-rId815.svg?20250523033240"> such that <img width="65.91500433651345" src="https://html.scirp.org/file/1724162-rId817.svg?20250523033240">. </img></img></img></img>Theorem 9 Let <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId819.svg?20250523033240"> be a complete b-metric-like space with a w-distance <img width="17.338534893801473" src="https://html.scirp.org/file/1724162-rId821.svg?20250523033240">, and <img width="72.85342584562011" src="https://html.scirp.org/file/1724162-rId823.svg?20250523033240"> be an admissible hybrid Geraghty contraction. If the following conditions hold:</img></img></img>(i) <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId825.svg?20250523033240"> is triangular α-orbital admissible;</img>(ii) there exists <img width="46.85466377440347" src="https://html.scirp.org/file/1724162-rId827.svg?20250523033240"> such that <img width="93.70932754880694" src="https://html.scirp.org/file/1724162-rId829.svg?20250523033240">;</img></img>(iii') <img width="20.80624187256177" src="https://html.scirp.org/file/1724162-rId831.svg?20250523033240"> is continuous and <img width="83.29718004338395" src="https://html.scirp.org/file/1724162-rId833.svg?20250523033240"> for any <img width="91.97396963123644" src="https://html.scirp.org/file/1724162-rId835.svg?20250523033240">;</img></img></img>then <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId837.svg?20250523033240"> has a fixed point in <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId839.svg?20250523033240">. </img></img>Proof. Following the proof of Theorem 7, we attain <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId841.svg?20250523033240"> is a Cauchy sequence and there exists <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId843.svg?20250523033240"> such that (24) holds. By (iii'), it deduces easily that </img></img><img width="272.4511930585684" src="https://html.scirp.org/file/1724162-rId845.svg?20250523033240" />If <img width="52.060737527114966" src="https://html.scirp.org/file/1724162-rId847.svg?20250523033240">. Let <img width="90.23861171366595" src="https://html.scirp.org/file/1724162-rId849.svg?20250523033240"> in (4), by (iii'), it follows that </img></img></title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p><img width="371.52777777777777" src="https://html.scirp.org/file/1724162-rId851.svg?20250523033240">(29)</img></p>
   <p>When <img width="39.8959236773634" src="https://html.scirp.org/file/1724162-rId853.svg?20250523033240">, then </img></p>
   <fig id="fig14" position="float">
    <label>Figure 14</label>
    <caption>
     <title>This is a contradiction. So <img width="52.060737527114966" src="https://html.scirp.org/file/1724162-rId857.svg?20250523033240">, that is, <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId859.svg?20250523033240"> has a fixed point.</img></img>When <img width="39.8959236773634" src="https://html.scirp.org/file/1724162-rId861.svg?20250523033240">, the same result can be proved. The proof is completed. □</img>Theorem 10. Let <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId863.svg?20250523033240"> be a complete b-metric-like space with a w-distance <img width="17.338534893801473" src="https://html.scirp.org/file/1724162-rId865.svg?20250523033240">, and <img width="72.85342584562011" src="https://html.scirp.org/file/1724162-rId867.svg?20250523033240"> be an admissible hybrid Geraghty contraction. If the following conditions hold:</img></img></img>(i) <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId869.svg?20250523033240"> is triangular α-orbital admissible;</img>(ii) there exists <img width="46.85466377440347" src="https://html.scirp.org/file/1724162-rId871.svg?20250523033240"> such that <img width="93.70932754880694" src="https://html.scirp.org/file/1724162-rId873.svg?20250523033240">;</img></img>(iii'') <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId875.svg?20250523033240"> is regular,</img>then <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId877.svg?20250523033240"> has a fixed point.</img>Proof. Similar to Theorem 7, we can also get <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId879.svg?20250523033240">. The proof is completed.</img>□Remark* We can get the same result, if (iii'') replaced by the following condition:</title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>(iii''') <img width="19.08893709327549" src="https://html.scirp.org/file/1724162-rId881.svg?20250523033240"> is regular with respect to <img width="19.07238838318162" src="https://html.scirp.org/file/1724162-rId883.svg?20250523033240"> and <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId885.svg?20250523033240">. </img></img></img></p>
   <p>We provide sufficient conditions for the existence of fixed points of <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId887.svg?20250523033240"> in Theorem 7 (rep., Theorem 9, Theorem 10), but it can’t guarantee the uniqueness of fixed point by Examples 2. Now in order to assure the uniqueness of fixed point, consider the following condition:</img></p>
   <p>(iv) for all <img width="175.3472222222222" src="https://html.scirp.org/file/1724162-rId889.svg?20250523033240">, where <img width="46.834345186470074" src="https://html.scirp.org/file/1724162-rId891.svg?20250523033240"> is the set of fixed points of <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId893.svg?20250523033240">.</img></img></img></p>
   <p>(v) <img width="43.365134431916736" src="https://html.scirp.org/file/1724162-rId895.svg?20250523033240">, where <img width="112.84722222222223" src="https://html.scirp.org/file/1724162-rId897.svg?20250523033240">.</img></img></p>
   <p>Theorem 11. Adding (iv) and (v) to the conditions of Theorem 7 (rep., Theorem 9, Theorem 10), we can obtain the uniqueness of the fixed point <img width="15.611448395490026" src="https://html.scirp.org/file/1724162-rId899.svg?20250523033240"> of <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId901.svg?20250523033240">.</img></img></p>
   <p>Proof. We prove the uniqueness of fixed points.</p>
   <p>For <img width="88.50325379609545" src="https://html.scirp.org/file/1724162-rId903.svg?20250523033240">, let <img width="116.31944444444444" src="https://html.scirp.org/file/1724162-rId905.svg?20250523033240"> and <img width="81.56182212581345" src="https://html.scirp.org/file/1724162-rId907.svg?20250523033240">. Let <img width="85.03253796095444" src="https://html.scirp.org/file/1724162-rId909.svg?20250523033240"> in Theorem 7 and then <img width="142.2993492407809" src="https://html.scirp.org/file/1724162-rId911.svg?20250523033240">, this is a contraction, so <img width="91.97396963123644" src="https://html.scirp.org/file/1724162-rId913.svg?20250523033240">, take the same method, we have <img width="91.97396963123644" src="https://html.scirp.org/file/1724162-rId915.svg?20250523033240">, then <img width="50.32537960954447" src="https://html.scirp.org/file/1724162-rId917.svg?20250523033240">. Furthermore,</img></img></img></img></img></img></img></img></p>
   <fig id="fig15" position="float">
    <label>Figure 15</label>
    <caption>
     <title>The proof is completed. □3.3. Application to Differential EquationsConsider the two-point boundary value problem of the second-order differential equation:<img width="130.20833333333334" src="https://html.scirp.org/file/1724162-rId921.svg?20250523033240">(30)</img>where <img width="123.21041214750542" src="https://html.scirp.org/file/1724162-rId923.svg?20250523033240"> is continuous. The boundary value problems (30) is equivalent to the following integral equation: </img><img width="317.7083333333333" src="https://html.scirp.org/file/1724162-rId925.svg?20250523033240">(31)</img>The Green function associated to (31) is defined by<img width="253.4722222222222" src="https://html.scirp.org/file/1724162-rId927.svg?20250523033240" />Let <img width="239.58333333333334" src="https://html.scirp.org/file/1724162-rId929.svg?20250523033240"> be a function defined by</img><img width="209.97830802603036" src="https://html.scirp.org/file/1724162-rId931.svg?20250523033240">(32)</img></title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>where <img width="86.76789587852494" src="https://html.scirp.org/file/1724162-rId933.svg?20250523033240"> is the set of all continuous real-valued functions defined on <img width="38.17787418655098" src="https://html.scirp.org/file/1724162-rId935.svg?20250523033240"> and <img width="36.41092327698309" src="https://html.scirp.org/file/1724162-rId937.svg?20250523033240">. It is easy to see that <img width="119.73969631236442" src="https://html.scirp.org/file/1724162-rId939.svg?20250523033240"> is a complete b-metric-like space with <img width="55.53145336225596" src="https://html.scirp.org/file/1724162-rId941.svg?20250523033240">. Let <img width="210.06944444444446" src="https://html.scirp.org/file/1724162-rId943.svg?20250523033240"> be a mapping defined by </img></img></img></img></img></img></p>
   <p><img width="326.3888888888889" src="https://html.scirp.org/file/1724162-rId945.svg?20250523033240">(33)</img></p>
   <p>Suppose that the following conditions hold:</p>
   <p>(i) there exist a function <img width="104.12147505422993" src="https://html.scirp.org/file/1724162-rId947.svg?20250523033240"> and <img width="147.5054229934924" src="https://html.scirp.org/file/1724162-rId949.svg?20250523033240"> with <img width="62.5" src="https://html.scirp.org/file/1724162-rId951.svg?20250523033240">, <img width="74.62039045553145" src="https://html.scirp.org/file/1724162-rId953.svg?20250523033240"> such that</img></img></img></img></p>
   <fig id="fig16" position="float">
    <label>Figure 16</label>
    <caption>
     <title>for all <img width="100.69444444444444" src="https://html.scirp.org/file/1724162-rId957.svg?20250523033240">, <img width="59.00216919739696" src="https://html.scirp.org/file/1724162-rId959.svg?20250523033240">, with <img width="121.47505422993491" src="https://html.scirp.org/file/1724162-rId961.svg?20250523033240">, where </img></img></img><img width="536.4583333333334" src="https://html.scirp.org/file/1724162-rId963.svg?20250523033240" />(ii) there exists <img width="135.35791757049893" src="https://html.scirp.org/file/1724162-rId965.svg?20250523033240"> such that <img width="145.83333333333334" src="https://html.scirp.org/file/1724162-rId967.svg?20250523033240"> for all <img width="59.00216919739696" src="https://html.scirp.org/file/1724162-rId969.svg?20250523033240">;</img></img></img>(iii) for all <img width="59.00216919739696" src="https://html.scirp.org/file/1724162-rId971.svg?20250523033240">, if <img width="32.957502168256724" src="https://html.scirp.org/file/1724162-rId973.svg?20250523033240"> is a sequence in <img width="86.76789587852494" src="https://html.scirp.org/file/1724162-rId975.svg?20250523033240"> such that <img width="67.67895878524946" src="https://html.scirp.org/file/1724162-rId977.svg?20250523033240"> and <img width="98.91540130151843" src="https://html.scirp.org/file/1724162-rId979.svg?20250523033240">, for all <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId981.svg?20250523033240">, then <img width="83.29718004338395" src="https://html.scirp.org/file/1724162-rId983.svg?20250523033240">, for all <img width="45.11930585683297" src="https://html.scirp.org/file/1724162-rId985.svg?20250523033240">.</img></img></img></img></img></img></img></img>Now we prove that existence of a solution of the above mentioned second-order differential equation.Theorem 12. Under conditions (i)-(iv), (30) has a solution in <img width="86.76789587852494" src="https://html.scirp.org/file/1724162-rId987.svg?20250523033240">.</img>Proof. It is well known that the solution of (30) is equivalent to the fixed point of <img width="15.604681404421326" src="https://html.scirp.org/file/1724162-rId989.svg?20250523033240"> in (33). Assume that <img width="123.21041214750542" src="https://html.scirp.org/file/1724162-rId991.svg?20250523033240"> such that <img width="121.47505422993491" src="https://html.scirp.org/file/1724162-rId993.svg?20250523033240">, for all <img width="59.00216919739696" src="https://html.scirp.org/file/1724162-rId995.svg?20250523033240">, and let <img width="116.26898047722342" src="https://html.scirp.org/file/1724162-rId997.svg?20250523033240">. By (i), we get that</img></img></img></img></img><img width="489.5833333333333" src="https://html.scirp.org/file/1724162-rId999.svg?20250523033240" />Let <img width="105.85683297180043" src="https://html.scirp.org/file/1724162-rId1001.svg?20250523033240"> and</img><img width="244.79166666666666" src="https://html.scirp.org/file/1724162-rId1003.svg?20250523033240" /></title>
    </caption>
    <graphic mimetype="image" position="float" xlink:type="simple" xlink:href="" />
   </fig>
   <p>We can attain that</p>
   <p>This research was funded by the Natural Science Foundation of Sichuan Province (Grant No. 2023NSFSC1299), the Scientific Research and Innovation Team Program of Sichuan University of Science and Engineering (SUSE652B002), the Innovation Fund of Postgraduate, Sichuan University of Science and Engineering (Grant No. Y2023336).</p>
  </sec>
 </body><back>
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