Boğaziçi University Mathematics Colloquium

Mapping Class Grupoids and Thompson's groups
Muhammed Uludağ
Galatasaray University, Turkey
Özet : We aim to concoct a uniform treatment of mapping class groups and Thompson’s groups and to generalize them. As a by-product we obtain a description of the outer automorphism group of free groups as the isotropy group of a groupoid, akin to the mapping class groupoid of Mosher and Penner. We illustrate some arithmetic aspects of these groupoids at the end of our talk.
  Tarih : 04.04.2018
  Saat : 13:30
  Yer : TB 130
  Dil : English