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Effective quasimorphisms on right-angled Artin groups

Presented by: 
Jing Tao University of Oklahoma
Date: 
Tuesday 20th June 2017 - 14:30 to 15:30
Venue: 
INI Seminar Room 1
Abstract: 
In this talk, I will describe joint work with T. Fernos and M. Forester in which we construct quasimorphisms on right-angled Artin groups that can "see" every nontrivial element. As consequence, there is a uniform lower bound of 1/24 for stable commutator lengths in right-angled Artin groups.
University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons