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Topology of groups of automorphisms of surfaces, and high dimensional analogues.

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A version of Hurwitz' theorem in terms of Euler characteristic

Page 203 of Farb and Margalit's Primer on Mapping Class Groups contains the result: Let $g ≥ 2$. The order of any finite subgroup of $MCG(S_g)$ is at most $84(g − 1)$. I've been told by my superviso …
Alex Townsend-Teague's user avatar