Algebra seminar by Daniel Woodhouse

On Wednesday the 26th of February 2020, Daniel Woodhouse (University of Oxford) will be visiting the Charlotte Scott Centre for Algebra and giving a talk at 3pm in INB3305. The details of his talk are as follows:
Title: Leighton’s graph covering theorem
Abstract: Leighton’s theorem for graphs states that any pair of finite graphs with common universal covers have a common finite cover.

Equivalently, this says that any pair of uniform lattices in the automorphism groups of a tree can be commensurated.

I will discuss the significance of this theorem, recent generalizations, and how it can be applied in geometric group theory.

One comment on “Algebra seminar by Daniel Woodhouse”

1. Evgeny Khukhro

   January 31, 2020

   

   Reblogged this on Maths & Physics News.

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