Algebra Seminar

Please note that the list below only shows forthcoming events, which may not include regular events that have not yet been entered for the forthcoming term. Please see the past events page for a list of all seminar series that the department has on offer.

Past events in this series
28 January 2020
14:15
Prof. Tim Riley

Further Information: 


A group is sofic when every finite subset can be well approximated in a finite symmetric group. The outstanding question, due to Gromov, is whether every group is sofic.
Helfgott and Juschenko argued that a celebrated group constructed by Higman is unlikely to be sofic because its soficity would imply the existence of some seemingly pathological functions.  I will describe joint work with Martin Kassabov and Vivian Kuperberg in which we construct variations on Higman's group and explore their soficity.  
 

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