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On non-contractible periodic orbits for surface homeomorphisms
Published online by Cambridge University Press: 19 March 2015
Abstract
In this work we study homeomorphisms of closed orientable surfaces homotopic to the identity, focusing on the existence of non-contractible periodic orbits. We show that, if $g$ is such a homeomorphism, and if
${\hat{g}}$ is its lift to the universal covering of
$S$ that commutes with the deck transformations, then one of the following three conditions must be satisfied: (1) the set of fixed points for
${\hat{g}}$ projects to a closed subset
$F$ which contains an essential continuum; (2)
$g$ has non-contractible periodic points of every sufficiently large period; or (3) there exists a uniform bound
$M>0$ such that, if
$\hat{x}$ projects to a contractible periodic point, then the
${\hat{g}}$ orbit of
$\hat{x}$ has diameter less than or equal to
$M$. Some consequences for homeomorphisms of surfaces whose rotation set is a singleton are derived.
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- Research Article
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- © Cambridge University Press, 2015
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