期刊
APPLIED MATHEMATICAL MODELLING
卷 38, 期 21-22, 页码 5022-5032出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.apm.2014.04.015
关键词
Pattern formation; Predator-prey; Cross diffusion
资金
- PRC Grant NSFC [61103018]
- NSF of Jiangsu Province [12KJD110008]
The paper explores the impacts of cross-diffusion on the formation of spatial patterns in a ratio-dependent predator-prey system with zero-flux boundary conditions. Our results show that under certain conditions, cross-diffusion can trigger the emergence of spatial patterns which is however impossible under the same conditions when cross-diffusion is absent. We give a rigorous proof that the model has at least one spatially heterogenous steady state by means of the Leray-Schauder degree theory. In addition, numerical simulations are performed to visualize the complex spatial patterns. (C) 2014 Elsevier Inc. All rights reserved.
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