Contributed Talk - The low dimensional homology of Coxeter groups
- đ¤ Speaker: Rachael Boyd (Norwegian University of Science and Technology)
- đ Date & Time: Thursday 06 December 2018, 15:00 - 15:30
- đ Venue: Seminar Room 1, Newton Institute
Abstract
Coxeter groups were introduced by Tits in the 1960s as abstractions of the finite reflection groups studied by Coxeter. Any Coxeter group acts by reflections on a contractible complex, called the Davis complex. This talk focuses on a computation of the first three integral homology groups of an arbitrary Coxeter group using an isotropy spectral sequence argument: the answer can be phrased purely in terms of the original Coxeter diagram. I will give an introduction to Coxeter groups and the Davis complex before outlining the proof.
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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Rachael Boyd (Norwegian University of Science and Technology)
Thursday 06 December 2018, 15:00-15:30