September 25, Murray Elder: An introduction to automata groups: the automaton for Grigorchuk's group

(Tue) October 10, 4pm-6pm Sasha Ushakov: Actions on rooted trees - level stabilizers - word problem for automata groups

October 16, Igor Lysionok: Grigorchuk's group has intermediate growth

October 23, Igor Lysionok: Infinite presentatablity of Grigorchuk's group

October 30, Sasha Ushakov: The conjugacy problem for Grigorchuk's group

November 6, Murray Elder: Geodesics and dead-ends in Grigorchuk's group

November 13, Sasha Ushakov: Centralizers in Grigorchuk's group

November 20, Murray Elder: Some generic ideas for Thompson's group F
 

References:

Piere de la Harpe Topics in geometric group theory Chicago lecture series in Mathematics. Amazon, Stevens Library: QA183.L3 2000
Grigorchuk Solved and Unsolved Problems Around One Group Grigorchuk's homepage
Grigorchuk and de la Harpe On problems related to growth, entropy and spectrum in group theory de la Harpe's page

Sean Cleary and Jennifer Taback Combinatorial properties of Thompson's group F ArXiv
Cannon, Floyd and Parry Notes on Thompson's groups F and T - download from wikipedia