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| DYNAMICS OF A PREDATOR-PREY REACTION-DIFFUSION SYSTEM WITH NON-MONOTONIC FUNCTIONAL RESPONSE FUNCTION |
| Huan Wang,Cunhua Zhang |
| (Dept. of Math., Lanzhou Jiaotong University, Lanzhou 730070, Gansu, PR China) |
| DOI： |
| Abstract: |
| In this article, a two-species predator-prey reaction-diffusion system with Holling type-IV functional response and subject to the homogeneous Neumann boundary condition is regarded. In the absence of the spatial diffusion, the local asymptotic stability, the instability and the existence of Hopf bifurcation of the positive equilibria of the corresponding local system are analyzed in detail by means of the basic theory for dynamical systems. As well, the effect of the spatial diffusion on the stability of the positive equilibria is considered by using the linearized method and analyzing in detail the distribution of roots in the complex plane of the associated eigenvalue problem. In order to verify the obtained theoretical predictions, some examples and numerical simulations are also included by applying the numerical methods to solve the ordinary and partial differential equations. |
| Key words: reaction-diffusion system; predator-prey system;
asymptotic stability; Hopf bifurcation |