Existence and uniqueness of limit cycles in a class of second order ODE's with inseparable mixed terms

Details Existence and uniqueness of limit cycles in a class of second order ODE's with inseparable mixed terms Existence and uniqueness of limit cycles in a class of second order ODE's with inseparable mixed terms

2010-06-10

arxiv.org/abs/1006.2020v1

Mathematics

Dynamical Systems

Scientific paper

We prove a uniqueness result for limit cycles of the second order ODE $\ddot x + \dot x \phi(x,\dot x) + g(x) = 0$. Under mild additional conditions, we show that such a limit cycle attracts every non-constant solution. As a special case, we prove limit cycle's uniqueness for an ODE studied in \cite{ETA} as a model of pedestrians' walk. This paper is an extension to equations with a non-linear $g(x)$ of the results presented in \cite{S}.

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