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In this paper the influence of diffusion for stability of the prey-predator system with delay is studied. We analysed the conditions which raise the Hopf bifurcation. The problem is reduced by centralmanifold, and the approximation form of the stability periodic is obtained 相似文献
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This paper discusses the existence and stability of steady-states for a three-dimensional system ef parabolic partial differential equations subject to Dirichlet boundary conditions, i.e. the situation in which a predator feeds on twoprey species. Resultts are obtained by the use of spectral analysis and bifurcation theory. 相似文献
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本文研究了一类带Dirichlet边值条件的退化椭圆方程组的正解的存在性,所用方法是构造性的,并将所得结果应用到一类生态方程的竞争模型。 相似文献
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