November 15, 2018
1:50PM - 2:50PM
Enarson Classroom 240
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2018-11-15 14:50:00
2018-11-15 15:50:00
Topology Seminar - Ryan Spitler
Title: Profinite Completions and Representations of Groups
Speaker: Ryan Spitler (Purdue University)
Abstract: The profinite completion of a group encodes all of the information of the finite quotients of that group. A group is called profinitely rigid if it is determined up to isomorphism by its profinite completion. I will discuss some ways that the profinite completion can be used to understand linear representations of a group and applications to questions related to profinite rigidity. In particular, I will explain the role this plays in forthcoming work with Bridson, McReynolds, and Reid which establishes the profinite rigidity of the fundamental groups of certain hyperbolic 3-manifolds and orbifolds.
Enarson Classroom 240
OSU ASC Drupal 8
ascwebservices@osu.edu
America/New_York
public
Date Range
Add to Calendar
2018-11-15 13:50:00
2018-11-15 14:50:00
Topology Seminar - Ryan Spitler
Title: Profinite Completions and Representations of Groups
Speaker: Ryan Spitler (Purdue University)
Abstract: The profinite completion of a group encodes all of the information of the finite quotients of that group. A group is called profinitely rigid if it is determined up to isomorphism by its profinite completion. I will discuss some ways that the profinite completion can be used to understand linear representations of a group and applications to questions related to profinite rigidity. In particular, I will explain the role this plays in forthcoming work with Bridson, McReynolds, and Reid which establishes the profinite rigidity of the fundamental groups of certain hyperbolic 3-manifolds and orbifolds.
Enarson Classroom 240
Department of Mathematics
math@osu.edu
America/New_York
public
Title: Profinite Completions and Representations of Groups
Speaker: Ryan Spitler (Purdue University)
Abstract: The profinite completion of a group encodes all of the information of the finite quotients of that group. A group is called profinitely rigid if it is determined up to isomorphism by its profinite completion. I will discuss some ways that the profinite completion can be used to understand linear representations of a group and applications to questions related to profinite rigidity. In particular, I will explain the role this plays in forthcoming work with Bridson, McReynolds, and Reid which establishes the profinite rigidity of the fundamental groups of certain hyperbolic 3-manifolds and orbifolds.