Trends in Dynamics

Title: Countable Markov partitions for smooth surface diffeomorphisms with positive topological entropy
Speaker: Omri Sarig
Speaker Info: Weizmann Institute and Penn State University
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Abstract: Suppose f:M-->M is a C^{1+epsilon} surface diffeomorphism with topological entropy h>0. For every positive delta less than h, we construct a "delta large" invariant set E such that f|E admits a countable Markov partition. "Delta large" means that E has full measure for every ergodic invariant measure with entropy bigger than delta.
Date: Thursday, April 28, 2011
Time: 11:20am-12:10pm
Where: Hardin Hall, Rebecca Crown Center, 633 Clark Street, Downstairs
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