CANCELLED - Zassenhaus Lecture - Mladen Bestvina

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Bestvina Mladen
April 7, 2020
4:15PM - 5:15PM
Location
Cockins Hall 240

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Add to Calendar 2020-04-07 16:15:00 2020-04-07 17:15:00 CANCELLED - Zassenhaus Lecture - Mladen Bestvina Title: Lecture 2. Asymptotic Dimension of Spaces and Groups Speaker: Mladen Bestvina - University of Utah Abstract: Gromov defined the notion of asymptotic dimension, which is a quasi-isometry invariant of spaces and groups. It is the large-scale analog of the usual covering dimension in topology. Computing it for a particular group, or even deciding if it is finite, is in general difficult. I will present some examples, e.g. Gromov's theorem that hyperbolic groups have finite asymptotic dimension, and outline a proof that mapping class groups have finite asymptotic dimension. This talk is based on my work with Ken Bromberg and Koji Fujiwara.  Cockins Hall 240 Department of Mathematics math@osu.edu America/New_York public
Description

Title: Lecture 2. Asymptotic Dimension of Spaces and Groups

Speaker: Mladen Bestvina - University of Utah

Abstract: Gromov defined the notion of asymptotic dimension, which is a quasi-isometry invariant of spaces and groups. It is the large-scale analog of the usual covering dimension in topology. Computing it for a particular group, or even deciding if it is finite, is in general difficult. I will present some examples, e.g. Gromov's theorem that hyperbolic groups have finite asymptotic dimension, and outline a proof that mapping class groups have finite asymptotic dimension. This talk is based on my work with Ken Bromberg and Koji Fujiwara. 

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