期刊
NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS
卷 159, 期 -, 页码 482-491出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.na.2017.02.022
关键词
Vegetation pattern model; Cross-diffusion system; Existence and uniqueness
In this paper we study a model which describes the pattern formation of vegetation spots and strips in a semi-arid or arid landscape. The mathematical model consists of a nonlinear cross-diffusion system with evaporation and absorption sources. Global existence and uniqueness in classical sense for the system are established. Some asymptotic behaviors of the solution are derived for a linearized system. It is shown that the solution of the linearized system is asymptotically stable near the steady state solution. Moreover, we show that the Turing phenomenon occurs for the linearized cross-diffusion system and the cross-diffusion destabilizes the ecosystem. (C) 2017 Elsevier Ltd. All rights reserved.
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