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On generalised presentations over topological groups

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  • UserBrita Nucinkis (Royal Holloway)
  • ClockFriday 13 March 2026, 13:45-14:45
  • HouseMR13.

If you have a question about this talk, please contact Francesco Fournier-Facio .

I will present a procedure that turns certain abstract presentations, such as those for surface groups, Thompson groups, and Artin groups into topological groups with a prescribed open subgroup. These all share some topological properties depending on the chosen open subgroup. For studying cohomological finiteness conditions, we concentrate on totally disconnected locally compact RAA Gs and present a generalisation of the Salvetti complex for these groups.

This is joint work with Ilaria Castellano, Bianca Marchionna and Yuri Santos Rego.

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

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