The Contrast Structures for a Class of Singularly Perturbed Systems with Heteroclinic Orbits

Han Xu and Yinlai Jin

Discrete Dynamics in Nature and Society, 2016, vol. 2016, 1-8

Abstract:

Singularly perturbed problems are often used as the models of ecology and epidemiology. In this paper, a class of semilinear singularly perturbed systems with contrast structures are discussed. Firstly, we verify the existence of heteroclinic orbits connecting two equilibrium points about the associated systems for contrast structures in the corresponding phase space. Secondly, the asymptotic solutions of the contrast structures by the method of boundary layer functions and smooth connection are constructed. Finally, the uniform validity of the asymptotic expansion is defined and the existence of the smooth solutions is proved.

Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnddns:6405853

DOI: 10.1155/2016/6405853

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