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Bounded cohomology and wreath products of groups

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  • UserElena Bogliolo (Università di Pisa)
  • ClockFriday 24 January 2025, 16:00-17:00
  • HouseMR13.

If you have a question about this talk, please contact Will Cohen .

Bounded cohomology was introduced by Johnson and Trauber in the context of Banach algebras and has since become a widely studied group invariant. In this talk, we give an introduction to the bounded cohomology of groups, focusing particularly on its vanishing properties. We define the wreath product construction and see some properties of the resulting groups. Finally, we will present a proof of Monod’s vanishing result for the bounded cohomology of (restricted) wreath products.

This talk is part of the Junior Geometry Seminar series.

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