Volume 2014, Issue 1 193143
Research Article
Open Access

Bifurcation in a Discrete Competition System

Li Xu

Corresponding Author

Li Xu

School of Science, Tianjin University of Commerce, Tianjin 300134, China tjcu.edu.cn

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Lianjun Zou

Lianjun Zou

School of Science, Tianjin University of Commerce, Tianjin 300134, China tjcu.edu.cn

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Zhongxiang Chang

Zhongxiang Chang

School of Science, Tianjin University of Commerce, Tianjin 300134, China tjcu.edu.cn

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Shanshan Lou

Shanshan Lou

School of Science, Tianjin University of Commerce, Tianjin 300134, China tjcu.edu.cn

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Xiangwei Peng

Xiangwei Peng

School of Science, Tianjin University of Commerce, Tianjin 300134, China tjcu.edu.cn

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Guang Zhang

Guang Zhang

School of Science, Tianjin University of Commerce, Tianjin 300134, China tjcu.edu.cn

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First published: 28 April 2014
Citations: 4
Academic Editor: Xiaochen Sun

Abstract

A new difference system is induced from a differential competition system by different discrete methods. We give theoretical analysis for local bifurcation of the fixed points and derive the conditions under which the local bifurcations such as flip occur at the fixed points. Furthermore, one- and two-dimensional diffusion systems are given when diffusion terms are added. We provide the Turing instability conditions by linearization method and inner product technique for the diffusion system with periodic boundary conditions. A series of numerical simulations are performed that not only verify the theoretical analysis, but also display some interesting dynamics.

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