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Finding simple curves in surface covers is undecidable

2018/06/10 by Irmer, Ingrid
#FOS: Mathematics #Geometric Topology (math.GT) #Group Theory (math.GR)

paper · doi:10.48550/arxiv.1806.03700

Abstract

It is shown that various questions about the existence of simple closed curves in normal subgroups of surface groups are undecidable.

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