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Thursday, June 25, 2026 - 16:00 in V2-210/216


Tame groups with wild rings

A talk in the Mathematisches Kolloquium series by
Giles Gardam from Universität Bonn

Abstract: Infinite groups can be extremely wild but this doesn't stop us wanting to understand their general behaviour. For example, group rings were conjectured since 1940 to have very simple behaviour regarding elements like zero divisors or units. I will explain why this is not the case, as even very tame groups can support exotic units, and touch on connections to conjectures in analysis, topology and dynamics.



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