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Mark Pengitore, PMA 12.166: Residual finiteness of the mapping class group with respect to solvable covers
Monday, September 19, 2022, 02:00pm - 03:00pm
In this talk, we will quantify residual finiteness of the mapping class group of finite type with respect to congruence quotients coming from characteristic finite index covers of the underlying surface with solvable deck group. We refer to these quotients as congruence quotients of solvable type. In particular, we construct an infinite sequence of mapping classes where the minimal congruence quotient of solvable type that detects one of these mapping classes has size which is super polynomial in word length.
Location: PMA 12.166

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