On Non-contractible Periodic Orbits and Bounded DeviationsWe present a dichotomy for surface homeomorphisms in the isotopy class of the
identity. We show that, in the absence of a degenerate fixed point set, either
there exists a uniform bound on the diameter of orbits of non-wandering points
for the lifted dynamics in the universal covering space, or the map has
non-contractible periodic points. We then use this new tool to characterize the
dynamics of area preserving homeomorphisms of the torus without
non-contractible periodic points, showing that if the fixed point set is
non-degenerate, then either the lifted dynamics is uniformly bounded, or the
lifted map has a single strong irrational dynamical direction.
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