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The 2-linearity of the free group and the topology of the punctured disc

Presented by: 
Anthony Licata Australian National University
Date: 
Thursday 27th April 2017 - 15:15 to 16:15
Venue: 
INI Seminar Room 2
Abstract: 
The goal of this talk will be to describe a rather basic linear action of the free group on a finitely-generated triangulated category, and describe two proofs of the faithfulness of this action.  I will also describe some of the geometric group theory and topology that is visible from the lens of this faithful 2-representation.


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University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons