%0 Journal Article
%T The twist subgroup of the mapping class group of a nonorientable surface
%A Michal Stukow
%J Mathematics
%D 2007
%I arXiv
%X Let T(N) be the subgroup of the mapping class group of a nonorientable surface N (possibly with punctures and/or boundary components) generated by twists about two-sided circles. We obtain a simple generating set for T(N). As an application we compute the first homology group (abelianization) of T(N).
%U http://arxiv.org/abs/0709.2798v1