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Y. J. Liu and W. G. Ge, “Stability Theorems and Existence Results for Periodic Solutions of Nonlinear Impulsive Delay Differential Equations with Variable Coefficients,” Nonlinear Analysis: Theory, Methods & Applications, Vol. 57, No. 3, 2004, pp. 363-399. doi:10.1016/j.na.2004.02.020

has been cited by the following article:

• TITLE: Existence and Uniqueness of Positive (Almost) Periodic Solutions for a Neutral Multi-Species Logarithmic Population Model with Multiple Delays and Impulses

  AUTHORS: Zhenguo Luo, Jianhua Huang, Liping Luo, Binxiang Dai

  KEYWORDS: Contraction Mapping Principle; Impulses; Lyapunov Functional; Global Attractivity; Uniqueness; Positive Periodic Solution; Almost Periodic Solution

  JOURNAL NAME: Open Journal of Applied Sciences, Vol.3 No.2, June 20, 2013

  ABSTRACT: In this paper, by using the contraction mapping principle and constructing a suitable Lyapunov functional, we established a set of easily applicable criteria for the existence, uniqueness and global attractivity of positive periodic solution and positive almost periodic solution of a neutral multi-species Logarithmic population model with multiple delays and impulses. The results improve and generalize the known ones in [1], as an application, we also give an example to illustrate the feasibility of our main results.