Sliding Shilnikov connection in Filippov-type predator–prey model

Carvalho, Tiago; Duarte Novaes, Douglas; Gonçalves, Luiz Fernando [UNESP]

Sliding Shilnikov connection in Filippov-type predator–prey model

Data

2020-05-01

Autores

Carvalho, Tiago

Duarte Novaes, Douglas

Gonçalves, Luiz Fernando

Tipo

Artigo

Resumo

Recently, a piecewise smooth differential system was derived as a model of a 1 predator–2 prey interaction where the predator feeds adaptively on its preferred prey and an alternative prey. In such a model, strong evidence of chaotic behavior was numerically found. Here, we revisit this model and prove the existence of a Shilnikov sliding connection when the parameters are taken in a codimension one submanifold of the parameter space. As a consequence of this connection, we conclude, analytically, that the model behaves chaotically for an open region of the parameter space.