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.

Highlights

  • There are more works on the periodic solution of neutral type Logistic models or Lotka-Volterra models

  • By using the contraction mapping principle and constructing a suitable Lyapunov functional, we established a set of 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

  • In [8], Li had studied the following single species neutral Logarithmic model: N t. He had established a set of applicable criteria for the existence of positive periodic solution of system (1.1) by applying the continuation theorem of the coincidence degree theory which proposed in [11] by Mawhin

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Summary

Introduction

There are more works on the periodic solution of neutral type Logistic models or Lotka-Volterra models (see [2,3,4,5,6,7] for details). In [8], Li had studied the following single species neutral Logarithmic model: He had established a set of applicable criteria for the existence of positive periodic solution of system (1.1) by applying the continuation theorem of the coincidence degree theory which proposed in [11] by Mawhin. In [9], Lu and Ge employed an abstract continuous theorem of k-set contractive operator to investigate the following equation: They established some criteria to guarantee the existence of positive periodic solutions of system (1.2). We investigate the existence, uniqueness of the positive periodic solution of the following neutral multi-species Logarithmic population system with multiple delays and impulses dNi ai bi j 1 cij j 1 dij j t ij t eij t j 1 t.

T t T t d
Preliminaries
Main Theorem
Global Asymptotic Stability
An Example
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