Different versions of mapping class groups of surfaces

Details Different versions of mapping class groups of surfaces Different versions of mapping class groups of surfaces

2009-08-16

arxiv.org/abs/0908.2221v1

Mathematics

General Topology

18 pages, 2 figures

Scientific paper

We give a short, mostly elementary and self-contained proof of the classical
result that the groups of diffeomorphisms, homeomorphisms, and homotopy
equivalences of a surface have the same group of connected components.

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