Journal
NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS
Volume 159, Issue -, Pages 482-491Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.na.2017.02.022
Keywords
Vegetation pattern model; Cross-diffusion system; Existence and uniqueness
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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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