Arithmetic of character varieties of free groups

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Event details

Date 24.11.2014
Hour 15:1517:00
Speaker Markus Reineke, (Wuppertal)
Location
Category Conferences - Seminars
Via counting over finite fields, we derive explicit formulas for the E-polynomials and Euler characteristics of GL(d)- and PGL(d)-character varieties of free groups. We prove a positivity property for these polynomials and relate them to the number of subgroups of finite index.

Practical information

  • Expert
  • Free

Organizer

  • Tamas Hausel

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