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math.GT2021★ 2 cited
Extending free group action on surfaces
Jesus Emilio Dominguez, Carlos Segovia
The present work introduces new perspectives in order to extend finite group actions from surfaces to 3-manifolds. We consider the Schur multiplier associated to a finite group …
math.GT2018
An approximation for the number of subgroups
Bruno Cisneros, Carlos Segovia
Previously the second author has constructed by cobordism methods, an invariant associated to a finite group . This invariant approximates the number of subgroups of a group, gi…