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Global stability analysis for discrete-time coupled systems with both time delay and multiple dispersal and its application

  • Pengfei Wang
  • , Zhiqiang Zhao
  • , Wenxue Li*
  • *Corresponding author for this work
  • Harbin Institute of Technology Weihai

Research output: Contribution to journalArticlepeer-review

Abstract

This paper is concerned with the global stability analysis of discrete-time coupled systems with both time delay and multiple dispersal (DCSTMs). We provide a systematic method to constructing a global Lyapunov function for DCSTMs. By employing the graph-theoretic method on multiple digraphs and Lyapunov method, a Lyapunov-type theorem and a coefficients-type criterion for a DCSTM are derived to guarantee global stability for the DCSTM. The main results are applied to a discrete-time predator-prey model with time delay where both preys and predators disperse among l patches, which is discretized by a nonstandard finite difference scheme. A numerical example is provided to show the effectiveness of the proposed results.

Original languageEnglish
Pages (from-to)42-52
Number of pages11
JournalNeurocomputing
Volume244
DOIs
StatePublished - 28 Jun 2017
Externally publishedYes

Keywords

  • discrete-time coupled systems
  • global stability
  • multi-graph theory
  • nonstandard finite difference scheme
  • time delay

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