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Wednesday, October 14, 2009 4:00 PHSC 809
Tea will be served at 3:30 in PHSC 424.
Abstract Given two conjugate mapping classes f and g, we produce a conjugating element w such that |w| < K (|f| + |g|), where |.| denotes the word metric with respect to a fixed generating set, and K is a constant depending only on the generating set. As a consequence, the conjugacy problem for mapping class groups is exponentially bounded.