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Rotational entropy for annulus endomorphisms
1991
Pacific Journal of Mathematics
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We study how some dynamical properties on a homeomorphism of the annulus affects its rotation set. We also introduce a topological invariant, designated "rotational entropy," that basically measures the rotational complexity of an annulus mapping.
doi:10.2140/pjm.1991.151.1
fatcat:tmz7qwbp2rhdtagkiv4g443fgu