<?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">AM</journal-id><journal-title-group><journal-title>Applied Mathematics</journal-title></journal-title-group><issn pub-type="epub">2152-7385</issn><publisher><publisher-name>Scientific Research Publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.4236/am.2013.411A3005</article-id><article-id pub-id-type="publisher-id">AM-38699</article-id><article-categories><subj-group subj-group-type="heading"><subject>Articles</subject></subj-group><subj-group subj-group-type="Discipline-v2"><subject>Physics&amp;Mathematics</subject></subj-group></article-categories><title-group><article-title>
 
 
  Boundedness of Hyper-Singular Parametric Marcinkiewicz Integrals with Variable Kernels
 
</article-title></title-group><contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>iquan</surname><given-names>Fang</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref><xref ref-type="corresp" rid="cor1"><sup>*</sup></xref></contrib><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Xianliang</surname><given-names>Shi</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib></contrib-group><aff id="aff1"><addr-line>Department of Mathematics, Zhejiang University of Science and Technology,Hangzhou, China</addr-line></aff><aff id="aff2"><addr-line>College of Mathematics and Computer Science, Hunan Normal University, Key Laboratory of High Performance Computing and Stochastic Information Processing (Ministry of Education of China), Hunan Normal University, Changsha, China</addr-line></aff><author-notes><corresp id="cor1">* E-mail:<email>fendui@yahoo.com(IF)</email>;</corresp></author-notes><pub-date pub-type="epub"><day>18</day><month>10</month><year>2013</year></pub-date><volume>04</volume><issue>11</issue><fpage>28</fpage><lpage>34</lpage><history><date date-type="received"><day>September</day>	<month>13,</month>	<year>2013</year></date><date date-type="rev-recd"><day>October</day>	<month>13,</month>	<year>2013</year>	</date><date date-type="accepted"><day>October</day>	<month>20,</month>	<year>2013</year></date></history><permissions><copyright-statement>&#169; 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><p>
 
 
   In this article, we consider the boundedness of  <inline-formula><inline-graphic xlink:href="dit_7f3d050b-01d7-4178-a5cc-9458b322a803.png" xlink:type="simple"/></inline-formula> on Hardy type space  <inline-formula><inline-graphic xlink:href="dit_c681ed73-54c7-4008-a608-afeb5c0247ad.png" xlink:type="simple"/></inline-formula>. Where  <inline-formula><inline-graphic xlink:href="dit_cd1620df-a950-478c-bbec-35bd8bdcaf18.png" xlink:type="simple"/></inline-formula> <inline-formula><inline-graphic xlink:href="dit_500380eb-c805-4883-bf99-d46ae705d865.png" xlink:type="simple"/></inline-formula>  
   <inline-formula><inline-graphic xlink:href="dit_ded931bd-11cb-4efd-a006-c87527662c14.png" xlink:type="simple"/></inline-formula>     <inline-formula><inline-graphic xlink:href="dit_1a67455f-dce1-4127-9a8b-b9c597cdc5f6.png" xlink:type="simple"/></inline-formula> 
 
</p></abstract><kwd-group><kwd>Hyper-Singular Marcinkiewicz Integral; Variable Kernel; Multilinear Commutator; Hardy Type Space</kwd></kwd-group></article-meta></front><body><sec id="s1"><title>1. Introduction</title><p>A function <img src="5-7401837\92961994-bf4b-4d16-aaba-38580a93af0b.jpg" /> defined on <img src="5-7401837\a119ff17-b4e3-4ecd-a215-6661e4c7baa0.jpg" /> is said to belong to<img src="5-7401837\480c9474-c943-4d82-ba8a-22283120b19b.jpg" />, if it satisfies the following three conditions:</p><p>1) <img src="5-7401837\43f77256-f39f-434d-ae0f-fb8a3cde6cd4.jpg" />for any <img src="5-7401837\c2706206-ec4a-4ed6-9d0a-8be0459b9e8f.jpg" /> and any<img src="5-7401837\be05bc26-a454-443b-acfa-469a528b2f08.jpg" />;</p><p>2) <img src="5-7401837\6d12b95d-38f5-4959-8a2b-710efe9d8179.jpg" /></p><p>3)<img src="5-7401837\2a3da959-a591-4f03-98c2-8df0b5e2a384.jpg" />, for any<img src="5-7401837\dd229291-f5ac-478d-949a-6ad84305a353.jpg" />.</p><p>In [<xref ref-type="bibr" rid="scirp.38699-ref1">1</xref>], the authors considered the hyper-singular parametric Marcinkiewicz integral with variable kernel as follows:</p><p><img src="5-7401837\69aec626-27eb-4660-b5fc-5196d462b6ab.jpg" /></p><p>where</p><p><img src="5-7401837\662b1d39-198e-4b56-9c97-38c90c71c0e0.jpg" /></p><p>When<img src="5-7401837\15fcd64b-671a-49ba-a1a8-725e8e2e4483.jpg" />, we set<img src="5-7401837\8cd4e8d0-4f6d-4335-9081-22b84e2761af.jpg" />, which is the parametric Marcinkiewicz integral with variable kernels considered in [<xref ref-type="bibr" rid="scirp.38699-ref2">2</xref>].</p><p>For <img src="5-7401837\e199d835-2f52-49d4-b459-e18cabe01a9d.jpg" /> the homogenous Lipschitz space <img src="5-7401837\73137d40-a4ce-4e24-9f53-3211a8d8c521.jpg" /> is the space of function <img src="5-7401837\900ff42b-2845-48b5-87cb-97f3bc9d69ed.jpg" /> such that</p><p><img src="5-7401837\84c7953b-7adb-4b08-a7b4-a1594b91004b.jpg" /></p><p>where <img src="5-7401837\76b81b15-e61b-46cb-8573-f3b0c241a922.jpg" /> denotes <img src="5-7401837\0041c337-ac5e-4ff2-a60f-93492694b6f5.jpg" />-th difference operator (see [<xref ref-type="bibr" rid="scirp.38699-ref3">3</xref>]).</p><p>In 2006, Lu and Xu studied the boundedness of the commutator of <img src="5-7401837\c9cec220-111c-4b2a-bade-e8fc49f7173b.jpg" /> in [<xref ref-type="bibr" rid="scirp.38699-ref4">4</xref>]. They proved that:</p><p>Theorem A [<xref ref-type="bibr" rid="scirp.38699-ref4">4</xref>]. Suppose <img src="5-7401837\9f62509b-54b4-4ad7-855c-b1985d451204.jpg" /> for <img src="5-7401837\d0a9343c-b66b-4760-a9db-c7fe00250785.jpg" /> If <img src="5-7401837\19688757-c7f2-46d8-a151-d3ff4fa85957.jpg" /> and<img src="5-7401837\ba11b77d-2117-49fd-a4e0-d9610a666c40.jpg" />, then <img src="5-7401837\f0084d86-eecc-47d9-949c-debaa7c47c82.jpg" /> maps <img src="5-7401837\a01eb850-517e-45af-b967-5ec4f226876a.jpg" /> continuously into<img src="5-7401837\312b8ba9-b10f-45f2-8df2-97e6981d4f59.jpg" />. Here <img src="5-7401837\be984c64-85a1-419e-a60b-d905a5e7a2ca.jpg" /> is defined as follows:</p><disp-formula id="scirp.38699-formula113038"><label>(1)</label><graphic position="anchor" xlink:href="5-7401837\d18dbe47-636d-40d3-a9e3-e2c1d395ab39.jpg"  xlink:type="simple"/></disp-formula><p>where</p><p><img src="5-7401837\b99c8bd1-ff18-4cc2-a620-cb551aab8770.jpg" /></p><p>Let <img src="5-7401837\cd37baa0-a27c-42e8-9203-0897550f8012.jpg" /> <img src="5-7401837\0bd9e369-edfd-49c3-a392-768591f34d80.jpg" /></p><p><img src="5-7401837\9595a483-1aa8-48a2-981c-b081604a6f4f.jpg" /><img src="5-7401837\a37dfa17-ba19-4099-b6d1-42246363b8fe.jpg" /><img src="5-7401837\b96afd6b-f4e4-4503-bcc6-881e7e61aa0a.jpg" />In this article, we mainly consider the commutator <img src="5-7401837\40fc2c6c-5d79-4541-9ecb-0b6f6412c04a.jpg" /> defined by</p><disp-formula id="scirp.38699-formula113039"><label>(2)</label><graphic position="anchor" xlink:href="5-7401837\ab454b97-dc00-43af-a0d3-b3af3c3a50b8.jpg"  xlink:type="simple"/></disp-formula><p>where</p><p><img src="5-7401837\61d4dbcf-6ae7-4f89-b259-484e0aed4d2c.jpg" /></p><p>Given any positive integer<img src="5-7401837\a3c909bb-ec55-4ddf-aa97-7bb19af0c467.jpg" />, for all<img src="5-7401837\66f2c1e4-b7c4-4a54-8b27-c1726c6b8493.jpg" />, we denote by <img src="5-7401837\ac6398b7-6704-4960-99f8-8535fc7c63e3.jpg" /> the family of all finite subsets <img src="5-7401837\2a587298-4318-4352-9f9f-c9cc653516b7.jpg" /> of <img src="5-7401837\979c3ac0-6767-45aa-834a-e5ba77245680.jpg" /> of <img src="5-7401837\adc0e9ce-46cd-4d53-9fa2-1b6c29bb7f22.jpg" /> different elements. For any<img src="5-7401837\0ee50d64-6b01-4e75-bb9a-bfccf188b703.jpg" />, we associate the complementary sequence <img src="5-7401837\3a9db487-0a0b-41af-a798-a2a67c0a6f20.jpg" /> given by<img src="5-7401837\c1e1d67a-35aa-488d-9d29-32d17ae58962.jpg" />, (see [<xref ref-type="bibr" rid="scirp.38699-ref5">5</xref>]).</p><p>For any<img src="5-7401837\a92d24d9-bdf4-4860-ad29-117bb61edfc7.jpg" />, we will denote <img src="5-7401837\abfa6a29-cba8-4dad-9cc8-60009cfbc1b2.jpg" /> and the product <img src="5-7401837\1a6d9538-fb14-43ae-a1b3-065c5a667ebc.jpg" /> When<img src="5-7401837\46c2b903-b6c4-414b-baf1-4b6f8792ad88.jpg" />, we have<img src="5-7401837\a85d5236-b99c-4b4c-b610-9e7828696825.jpg" />by definition, we have<img src="5-7401837\94d8f79e-1c05-4815-97f9-ecba7ba13b0e.jpg" />. Similarly, when<img src="5-7401837\d7b7dc4b-6701-4ae6-9f66-c39d651e87c3.jpg" />, we have <img src="5-7401837\81d31569-806a-4a76-99ae-8853a89027e4.jpg" /> and<img src="5-7401837\103e46ad-cac4-45ec-bf8b-7c37c6755ba4.jpg" />. With this notation, if</p><p><img src="5-7401837\2013effa-0bef-4e05-acec-1db3bff0a6f1.jpg" />we write <img src="5-7401837\e45377b0-0c9f-4fdc-860b-0410d51640b1.jpg" /></p><p>When<img src="5-7401837\730ce59e-6338-4270-abea-ce684be5649b.jpg" />, we write <img src="5-7401837\95c950e6-bee0-409d-8798-957b675d7a1f.jpg" /></p><p>Definition1.1.Let<img src="5-7401837\b8ab2911-2151-43e8-9164-da06f25b03c6.jpg" />, <img src="5-7401837\6a3679cf-b413-4a5b-be5c-6a90f85b8a79.jpg" />be defined as above such that<img src="5-7401837\15f2f9fc-5c1f-437b-a5a3-41a7022b11fd.jpg" />.</p><p>A function <img src="5-7401837\6b9ed349-7f96-4467-8454-dc48497db02e.jpg" /> on <img src="5-7401837\41028870-52f7-437d-9a2b-4ac4a0fca65f.jpg" /> is called a <img src="5-7401837\e5d2beec-1196-47a6-b0fb-9e2b02b97868.jpg" />-atom if 1)<img src="5-7401837\0cf6e7c1-f440-4e90-9d24-9e248e528e2f.jpg" />, for some <img src="5-7401837\87968b9d-2a3e-4b1a-9781-09825841dc15.jpg" /> and<img src="5-7401837\1499131a-8256-4074-a685-d8c040cdcc38.jpg" />;</p><p>2) <img src="5-7401837\e672a4e9-683a-4bcd-88a3-77ec12b0ec86.jpg" /></p><p>3) <img src="5-7401837\bde7e7b4-7c59-4974-a593-5a07bbca2449.jpg" />for any</p><p><img src="5-7401837\60e53eee-4bfe-4be1-a93d-9509a55cf0e2.jpg" />and <img src="5-7401837\c9eaf648-2d30-4e5f-862f-39f232edc944.jpg" /></p><p>Definition 1.2. Let<img src="5-7401837\b3645899-68df-459f-8540-6d6d958a3f7b.jpg" />, we say that a distribution <img src="5-7401837\ca11ff69-d876-4f55-94ef-a06d7c27007d.jpg" /> on <img src="5-7401837\3aadbe08-22fb-4906-9d3e-bca230f4e0a5.jpg" /> belongs to <img src="5-7401837\36de483e-a172-4680-9211-c56f8c883b9a.jpg" /> if and only if <img src="5-7401837\eb6c9e48-59b2-4efb-8f2c-2ccfaa989988.jpg" /></p><p>can be written as <img src="5-7401837\bbe3a4da-a3be-4809-bb88-8f878b8bc487.jpg" /> in the distributional sensewhere each <img src="5-7401837\2d50ae97-2b6d-4a53-92e9-a8183478b35d.jpg" /> is a <img src="5-7401837\311569c8-8d46-4459-b294-1b4a7008c02b.jpg" />-atom and</p><p><img src="5-7401837\c7b50d84-fad5-4486-b8bd-f309b7f24f96.jpg" />Moreover,</p><p><img src="5-7401837\e0654f5e-cc52-4b7e-8c3c-86038b94b94f.jpg" /></p><p>with the infimum taken over all the above decompositions of <img src="5-7401837\89c4d882-caa5-4731-864d-16c7b411012e.jpg" /> as above Definition 1.3. A function <img src="5-7401837\2832a4e8-e3ca-46a4-9df9-54c40eda8637.jpg" /> is said to satisfy the <img src="5-7401837\a8ad1244-97a5-4203-a6c3-d9d2ffc2002e.jpg" />-Dini condition, if</p><disp-formula id="scirp.38699-formula113040"><label>(3)</label><graphic position="anchor" xlink:href="5-7401837\a00df320-6578-495b-84cf-54224b160d6e.jpg"  xlink:type="simple"/></disp-formula><p>where <img src="5-7401837\66d2299c-a06c-48d1-9081-818cc064e756.jpg" /> denotes the integral modulus of continuity of order <img src="5-7401837\d437b243-55ca-46db-bf94-ce5e3bcc395c.jpg" /> of <img src="5-7401837\151b78a2-03c8-42af-9a65-dfb102b0b9cf.jpg" /> defined by</p><p><img src="5-7401837\73e7238c-a725-4855-be27-8b7bc3389c21.jpg" /></p><p>We will denote simply <img src="5-7401837\b1a1b02e-35bb-40d0-8f38-e6703fc775af.jpg" />-Dini condition for <img src="5-7401837\f7a64c12-bb69-430c-bbe2-8257510de21c.jpg" />- Dini condition when<img src="5-7401837\c0a34b03-029d-4049-ac95-6c87c73a88e4.jpg" />.</p></sec><sec id="s2"><title>2. Main Theorem</title><p>Now let us formulate our main results as follows.</p><p>Theorem 2.1. Suppose that <img src="5-7401837\c97da0af-e544-4b8e-83e4-d4e8ce760011.jpg" /> is the commutator</p><p>(2), and let<img src="5-7401837\a423d3c8-cf54-41fe-8c0f-2202fb2e82c2.jpg" /><img src="5-7401837\f59d5948-2830-48f7-8068-6ddcb546ac9b.jpg" />, then <img src="5-7401837\9511be2f-bb96-42a0-9de0-18e939c6c477.jpg" /> is bounded from <img src="5-7401837\f15ef0fb-b773-42a5-b729-d3f0ec8ec70e.jpg" /> into<img src="5-7401837\f7989b07-17fd-412a-8ffe-52ce388abf03.jpg" />. That is,</p><p><img src="5-7401837\242f1207-d0fd-4efe-ab95-09449cabb923.jpg" /></p><p>Theorem 2.2. Suppose that <img src="5-7401837\4f7d914e-4a1f-4cea-a91a-7c2f3b6e9a61.jpg" /> is the commutator</p><p>(2), and let <img src="5-7401837\a3a49017-e3a3-448f-87e8-d2df5b53ddd0.jpg" /> If</p><p><img src="5-7401837\5605d840-ebac-44d2-b3e7-e5eb8715e14b.jpg" />satisfies the following two conditions:</p><p>1) <img src="5-7401837\f3a2db7e-0744-4382-bb3a-039906f4a0d3.jpg" />satisfies <img src="5-7401837\2ebee638-8745-4890-97d3-e48f669fe354.jpg" />-Dini condition (3);</p><p>2) there exists</p><p><img src="5-7401837\1158c2fc-b55c-420d-9b83-c79b375fd8db.jpg" />such that <img src="5-7401837\24b0c413-91e2-468c-a28b-a496e1203e8f.jpg" /> then <img src="5-7401837\b3d4c4df-0c6d-4190-b926-01911d7c2ab8.jpg" /> is bounded from <img src="5-7401837\a9f17afc-8a5d-40a5-892d-add946fdac9f.jpg" /> into<img src="5-7401837\39e51c2f-6be0-48aa-a926-6b003489f17b.jpg" />. That is</p><p><img src="5-7401837\02f4644e-888f-41bb-a7e0-5d03c43762d9.jpg" /></p><p>Remark Obviously, <img src="5-7401837\2e08de5c-683b-4756-bc3c-bd5aababf7d0.jpg" />is the commutator of the operator <img src="5-7401837\254dc857-d504-49f3-a3fe-dccbccfb6048.jpg" /> in [<xref ref-type="bibr" rid="scirp.38699-ref1">1</xref>]. At the same time, we change the course of the statement in [<xref ref-type="bibr" rid="scirp.38699-ref4">4</xref>].</p><p>In order to prove our Theorems, we need several preliminary lemmas.</p><p>Lemma 2.1. [<xref ref-type="bibr" rid="scirp.38699-ref6">6</xref>] Let <img src="5-7401837\1c2f008c-0eb4-4439-a65e-37bbead09ae1.jpg" /> and suppose <img src="5-7401837\435ee561-81b5-45cb-b77b-abf11e5c1d8d.jpg" /> If there exists a constant <img src="5-7401837\7698d79f-6c35-4b9c-970f-bc9067cbff1b.jpg" /> such that<img src="5-7401837\fc99a621-6c76-448a-b871-d064484b5fc8.jpg" />, then for any</p><p><img src="5-7401837\e45bf8f6-a078-45fa-9525-6c1290cee216.jpg" />,</p><p><img src="5-7401837\370d4a65-ed8d-4040-a5b1-e27eab0fbc42.jpg" /></p><p>where the constant <img src="5-7401837\e2451e7b-2ef4-4018-b932-38cd031890d4.jpg" /> is independent of <img src="5-7401837\5a7c0559-41ef-4213-abb2-aa7301401c87.jpg" /> and<img src="5-7401837\04de8716-8ae4-4d21-8733-215aa856a318.jpg" />.</p><p>lemma 2.2. [<xref ref-type="bibr" rid="scirp.38699-ref7">7</xref>] Let<img src="5-7401837\e5be3d66-1fe7-4986-ad4c-e03421b12917.jpg" />, <img src="5-7401837\aed798e5-0c53-4087-9930-4393ffd88c76.jpg" />and <img src="5-7401837\781406fb-31ba-4f28-b816-5d433d96c618.jpg" /> be defined as <img src="5-7401837\c68a4030-6c7f-4a60-85b9-242aab2621a0.jpg" /> If there exists</p><p><img src="5-7401837\8d27c0f4-00e4-44e7-b08a-8a7483250e06.jpg" />, such that <img src="5-7401837\922ac7f3-9f8e-43c4-985a-482b13fa9c9e.jpg" /> then</p><p><img src="5-7401837\f3afa1ee-75fe-431e-97f1-266b2096c76a.jpg" />is bounded from <img src="5-7401837\53144b90-f7aa-434e-846b-e64fc62c92ec.jpg" /> into<img src="5-7401837\44df398d-a177-4602-aff0-6efe99a7913d.jpg" />. That is</p><p><img src="5-7401837\cfb22cbc-d87f-488d-9a51-d8f7767ca066.jpg" /></p></sec><sec id="s3"><title>3. Proofs</title><sec id="s3_1"><title>3.1. Proof of Theorem 2.1.</title><p>Applying the Minkowski’ inequality, we can get</p><p><img src="5-7401837\21c68c77-965e-4721-b188-a8f09ce0c81d.jpg" /></p><p>By Lemma 2.2 , we have</p><p><img src="5-7401837\2225343b-73e0-4a26-a828-72faaba4a1a6.jpg" /></p><p>This completes the proof of Theorem 2.1.</p></sec><sec id="s3_2"><title>3.2. Proof of Theorem 2.2.</title><p>Noting that<img src="5-7401837\21c3fe88-b3ab-4167-90a2-3e9324d4b16b.jpg" />, we can choose <img src="5-7401837\42abbade-fc6d-41fb-868a-eb650c86b794.jpg" /> such that<img src="5-7401837\e7d2f9cb-c2c2-4b68-af09-3e9ecd1630f4.jpg" />. It is easy to see that<img src="5-7401837\1aa96778-65fd-4525-9b82-80a98f4b0f04.jpg" />. Next , we choose <img src="5-7401837\9a1e788f-d1a5-4595-b3c8-e737bae7de1f.jpg" /> such that <img src="5-7401837\d86138a2-79c3-426a-b25b-4a5f5d37ffd9.jpg" /> It follows from Theorem <img src="5-7401837\e42cc8fb-71e1-4cee-adea-19a3e235d2c3.jpg" /> that <img src="5-7401837\1f4269f2-0d52-4228-8862-1efeb38ff2de.jpg" /> is bounded from <img src="5-7401837\d998dea3-0340-48f8-b719-5f946553bdd0.jpg" /> into<img src="5-7401837\537b5471-71b0-43fa-b3ca-f5bfbe12a79f.jpg" />. That is</p><disp-formula id="scirp.38699-formula113041"><label>(4)</label><graphic position="anchor" xlink:href="5-7401837\92ec7e8d-33d1-43b0-ade2-fcd30009ded0.jpg"  xlink:type="simple"/></disp-formula><p>By the atomic decomposition theory on Hardy type space, it suffices to prove that there is a constant <img src="5-7401837\6f781fd4-8f14-47c0-bf3c-0b2a7325b7b9.jpg" /> such that for all <img src="5-7401837\cc76a5b0-8a86-448b-b899-339d0bb8e4d5.jpg" />-atom the following holds</p><p><img src="5-7401837\25c2a747-8e1c-4968-a28f-f9e1ce293e88.jpg" /></p><p>Without loss of generality we may assume that</p><p><img src="5-7401837\b5227ff0-45a5-423d-8816-d2bbc978fdc5.jpg" />. We write <img src="5-7401837\e1ff0c6e-aa61-4cf8-9533-716be43a4d79.jpg" /> We split</p><p><img src="5-7401837\49791299-180c-4c85-924a-9e0bfdc85277.jpg" />into two parts as follows:</p><p><img src="5-7401837\48a1d630-313d-4d59-9ade-20a9269c3b80.jpg" /></p><p>We can easily see that<img src="5-7401837\0b6eff46-3b02-46b2-9a54-ee33a4d82d73.jpg" />. By (4) and the size condition of atom<img src="5-7401837\a5fd80a0-324b-4b15-a8af-fec8628347ab.jpg" />, we have</p><p><img src="5-7401837\e6b4c334-f780-4a4b-926f-2deeb8305fb7.jpg" /></p><p>Next we estimate<img src="5-7401837\7218a98f-e869-4a66-90df-da9d9e901e62.jpg" />. Let us consider<img src="5-7401837\dc6ade04-cc21-43ec-a725-3ff97e7b49ad.jpg" />:</p><p><img src="5-7401837\d157f17a-1b29-40d3-9b07-f07847516a34.jpg" /></p><p><img src="5-7401837\bafbd9c3-5d10-4848-b360-a9c29a3a2667.jpg" />for</p><p><img src="5-7401837\d9f0feed-30a1-4297-86e9-f06e8edae43b.jpg" />. By the mean value theorem, we have</p><p><img src="5-7401837\ebabac6d-402d-4b07-aa17-f4ba6d275cba.jpg" /></p><p>Thus, by the Minkowski’s inequality for integrals,</p><p><img src="5-7401837\56b25cc0-cb9d-4ce0-8abc-13eeeb836a09.jpg" /></p><p>Applying the H&#246;lder inequality and the size condition of<img src="5-7401837\a085b70d-aa78-44c0-9879-f0358fae0b3c.jpg" />, we have</p><p><img src="5-7401837\98e672c8-b33d-4ec5-bc7a-ff4477f16407.jpg" /></p><p>So we can get</p><p><img src="5-7401837\b1c04605-8aab-4aa5-8d0c-b3529f935d16.jpg" /></p><p>Noting that <img src="5-7401837\b44a0369-9e52-4ce5-be2a-6f6271b5b586.jpg" /> we have</p><p><img src="5-7401837\1c68d402-8e1b-4b2c-bc51-efce63265a02.jpg" /></p><p>For<img src="5-7401837\a4763a36-3626-41ef-989b-57aaeb71e843.jpg" />, we write</p><p><img src="5-7401837\069af96b-bbcc-4e4e-8198-a499fb01474d.jpg" /></p><p><img src="5-7401837\dc3d4e18-b6a7-48d2-8b20-f2f3b0fb63f9.jpg" /></p><p>So <img src="5-7401837\5fc5a63c-1f27-4ac6-bec9-3a1c6ee46153.jpg" /> is dominated by</p><p><img src="5-7401837\e83c9b10-e218-407d-b771-3eebafa7518c.jpg" /></p><p>Now let us estimate<img src="5-7401837\600cdc2f-6df8-49f8-b5ce-9c5bb5899789.jpg" />. By the vanishing condition of<img src="5-7401837\d7ccb32a-5c3c-4c3b-a6ae-26a2d96476ba.jpg" />, we have</p><p><img src="5-7401837\33a4b5ba-b993-42ba-a7d3-1a131522f78e.jpg" /></p><p>where <img src="5-7401837\08249c1b-2542-4cbf-a043-37303afeba85.jpg" /></p><p>Since <img src="5-7401837\03afc851-1990-45e7-b2e5-52f3e55e1f4e.jpg" /> we get from H&#246;lder’s inequality and Lemma<img src="5-7401837\f5e59c0e-79b1-4a16-8906-68a321269814.jpg" />,</p><p><img src="5-7401837\5f16a6f6-8059-4e71-915c-0d54b5d1e895.jpg" /></p><p>Now we estimate<img src="5-7401837\e162e206-7657-49a6-8215-d7aa5ee54324.jpg" />. Applying Minkowski's inequality, the size condition of<img src="5-7401837\f48786e9-543c-4ade-8c74-664ab1efd0fb.jpg" />, we obtain</p><p><img src="5-7401837\0f71f1e4-2083-4e65-ab72-f40a9cec8dd9.jpg" /></p><p>So we have</p><p><img src="5-7401837\c32f63ff-bb70-4959-9621-22eacc58d790.jpg" /></p><p>Thus</p><p><img src="5-7401837\b48f490d-ca64-46e8-81b6-fcd3a41edd4e.jpg" /></p><p>So when<img src="5-7401837\027f25a5-32d1-4ba1-a92c-1fbdc7e416f4.jpg" />, we have</p><p><img src="5-7401837\734fb327-4f9c-410c-b637-02c8bb623589.jpg" /></p><p><img src="5-7401837\7c5f86e7-753b-4950-aabb-a93ea71483a2.jpg" /></p><p>Combining the estimates for <img src="5-7401837\bcfa7f2e-e7ea-42b6-b7a8-95e50ec9ee3d.jpg" /> and<img src="5-7401837\88d10223-0381-4dd9-b51c-ac17dfdd99f8.jpg" />, we have</p><p><img src="5-7401837\6e0a7dbb-2fd5-47b0-9adf-b449e6d9a8a9.jpg" /></p><p>This completes the proof of Theorem 2.2.</p></sec></sec><sec id="s4"><title>4. Acknowledgements</title><p>The authors would like to thank anonymous reviewers for their comments and suggestions. The authors are partially supported by project 11226108, 11071065, 11171306 funded by NSF of China, project 20094306110004 funded by RFDP of high education of China.</p></sec><sec id="s5"><title>REFERENCES</title></sec><sec id="s6"><title>NOTES</title></sec></body><back><ref-list><title>References</title><ref id="scirp.38699-ref1"><label>1</label><mixed-citation publication-type="other" xlink:type="simple">X. X. Tao, X. Yu and S. Y. Zhang, “Boundedness on Hardy-Sobolev Spaces for Hypersingular Marcinkiewicz Integrals with Variable Kernels,” Journal of Inequalities and Applications, Vol. 2008, 2008, pp. 1-17.http://dx.doi.org/10.1155/2008/835938</mixed-citation></ref><ref id="scirp.38699-ref2"><label>2</label><mixed-citation publication-type="other" xlink:type="simple">Y. Ding and R. 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