## New answers tagged mapping-class-groups

3
votes

### Finite normal subgroup of mapping class group

When the genus of the surface is at least 3, Lanier-Margalit proved something much stronger than the fact that there are no finite normal subgroups: aside from the hyperelliptic involution, the normal ...

10
votes

Accepted

### Finite normal subgroup of mapping class group

I found the following two assertions in Maher and Tiozzo's article Random walks, WPD actions, and the Cremona group. They refer to Ivanov's monograph Subgroups of Teichmüller modular groups. (I don't ...

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