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Stable commutator length in free and surface groups

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  • UserAlexis Marchand (University of Cambridge)
  • ClockFriday 17 February 2023, 13:45-14:45
  • HouseMR13.

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Stable commutator length (scl) is a measure of homological complexity in groups that has attracted attention for its various connections with geometric topology and group theory. In this talk, I will introduce scl and discuss the (hard) problem of computing scl in surface groups. I will present some results concerning isometric embeddings of free groups for scl, and how they generalise to surface groups for the relative Gromov seminorm.

This talk is part of the Geometric Group Theory (GGT) Seminar series.

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