Association Journal of CSIAM
Supervised by Ministry of Education of PRC
Sponsored by Xi'an Jiaotong University
ISSN 1005-3085  CN 61-1269/O1

Chinese Journal of Engineering Mathematics ›› 2021, Vol. 38 ›› Issue (5): 679-690.doi: 10.3969/j.issn.1005-3085.2021.05.007

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Bifurcation Structures for a Class of Ratio-type Holling-Leslie Chemotaxis Models

ZHANG Wang,   LI Yanling,   ZHOU Hao   

  1. School of Mathematics and Information Science, Shaanxi Normal University, Xi'an 710119
  • Online:2021-10-15 Published:2021-12-15
  • Contact: Y. Li. E-mail address: yanlingl@snnu.edu.cn
  • Supported by:
    The National Natural Science Foundation of China (61672021).

Abstract:

In this paper, a kind of rate-dependent Holling-Leslie predator-prey chemotaxis model is studied by using linearization method and local bifurcation theory. We discuss the structure of the normal positive equilibrium point in detail in two dimensional space with the prey-tactic sensitivity coefficient as bifurcation parameter and the bifurcation direction is determined near the bifurcation point. The theoretical results show that chemotactic rejection has an unstable effect and can lead to local bifurcation solutions. Finally, the theoretical prediction is verified by numerical simulation, and it is explained that the biochemical system would change from a homogeneous stable state to an unstable biological phenomenon.

Key words: chemotaxis, equilibrium solution, asymptotically stable, local branch

CLC Number: