Turing Bifurcation and Pattern Formation of Stochastic Reaction‐Diffusion System

Qianiqian Zheng, Zhijie Wang, Jianwei Shen and Hussain Muhammad Ather Iqbal

Advances in Mathematical Physics, 2017, vol. 2017, issue 1

Abstract: Noise is ubiquitous in a system and can induce some spontaneous pattern formations on a spatially homogeneous domain. In comparison to the Reaction‐Diffusion System (RDS), Stochastic Reaction‐Diffusion System (SRDS) is more complex and it is very difficult to deal with the noise function. In this paper, we have presented a method to solve it and obtained the conditions of how the Turing bifurcation and Hopf bifurcation arise through linear stability analysis of local equilibrium. In addition, we have developed the amplitude equation with a pair of wave vector by using Taylor series expansion, multiscaling, and further expansion in powers of small parameter. Our analysis facilitates finding regions of bifurcations and understanding the pattern formation mechanism of SRDS. Finally, the simulation shows that the analytical results agree with numerical simulation.

Date: 2017
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https://doi.org/10.1155/2017/9648538

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Persistent link: https://EconPapers.repec.org/RePEc:wly:jnlamp:v:2017:y:2017:i:1:n:9648538

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