Nonlinear Sciences – Pattern Formation and Solitons
Scientific paper
2011-05-19
Nonlinear Sciences
Pattern Formation and Solitons
Scientific paper
We study the existence of traveling wave solutions for a diffusive predator-prey system. The system considered in this paper is governed by a Sigmoidal response function which is more general than those studied previously. Our method is an improvement to the original method introduced in the work of Dunbar \cite{Dunbar1,Dunbar2}. A bounded Wazewski set is used in this work while unbounded Wazewski sets were used in \cite{Dunbar1,Dunbar2}. The existence of traveling wave solutions connecting two equilibria is established by using the original Wazewski's theorem which is much simpler than the extended version in Dunbar's work.
Lin Xiaobiao
Weng Peixuan
Wu Chufen
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