On endomorphisms of surface mapping class groups

Details On endomorphisms of surface mapping class groups On endomorphisms of surface mapping class groups

1999-04-22

arxiv.org/abs/math/9904125v1

Mathematics

Geometric Topology

5 pages

Scientific paper

We prove that every endomorphism of the mapping class group of an orientable
surface onto a subgroup of finite index is in fact an automorphism.

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