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On the use of the topological degree theory in broken orbits analysis
Authors:A. V. Pokrovskii   O. A. Rasskazov
Affiliation:Department of Applied Mathematics, National University of Ireland, University College, Cork, Ireland ; Institute for Nonlinear Science, Department of Physics, National University of Ireland, University College, Cork, Ireland
Abstract:Dynamical systems $f$ in ${mathbb R}^{d}$ are studied. Let $mbox{boldmath $Omega$ } subset{mathbb R}^{d}$ be a bounded open set. We will be interested in those periodic orbits such that at least one of its points lies inside $mbox{boldmath$Omega$ }$ and at least one of its points lies outside $overline{mbox{boldmath$Omega$ }}$; the orbits with this property are called $mbox{boldmath$Omega$ }$-broken. Information about the structure of the set of $mbox{boldmath$Omega$ }$-broken orbits is suggested; results are formulated in terms of topological degree theory.

Keywords:Index sequence   topological degree   periodic orbits
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