A Lotka-Volterra Competition Model with Cross-Diffusion

作者:Chen Wenyan*; Chen Ya
来源:Abstract and Applied Analysis, 2013, 2013: 624352.
DOI:10.1155/2013/624352

摘要

A Lotka-Volterra competition model with cross-diffusions under homogeneous Dirichlet boundary condition is considered, where cross-diffusions are included in such a way that the two species run away from each other because of the competition between them. Using the method of upper and lower solutions, sufficient conditions for the existence of positive solutions are provided when the cross-diffusions are sufficiently small. Furthermore, the investigation of nonexistence of positive solutions is also presented.

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