On endomorphisms of surface mapping class groups
几何拓扑
2007-05-23 v1
摘要
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.
引用
@article{arxiv.math/9904125,
title = {On endomorphisms of surface mapping class groups},
author = {Mustafa Korkmaz},
journal= {arXiv preprint arXiv:math/9904125},
year = {2007}
}
备注
5 pages