A finite generating set for the level 2 mapping class group of a nonorientable surface

Abstract

We obtain a finite set of generators for the level 2 mapping class group of a closed nonorientable surface of genus $g\ge 3$. This set consists of isotopy classes of Lickorish's Y-homeomorphisms also called crosscap slides.

13 pages, 3 figures

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• A minimal generating set of the level 2 mapping class group of a non-orientable surface