Topology & Geometric Group Theory Seminar

Spring 2008

1:30 - 2:30, Malott 207

Tuesday, April 8

Bronlyn Wassink, Binghamton University


Finite-index subgroups of Thompson's group F

In this talk, we will classify the finite index subgroups of R. Thompson's group F. Specific functions will be given that generate finite index subgroups of F that are isomorphic to F. The finite index subgroups of F that are not isomorphic to F will be characterized using the structure of finite index subgroups of Z x Z.

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