Title: Train tracks and fixed points of automorphisms of free groups
Speaker: Oleg Bogopolski (Universität Düsseldorf)
Abstract: Relative train tracks invented by Bestvina and Handel is a powerful tool for studying automorphisms of free groups. I will explain basic notions of this theory with examples. Then I will explain an algorithm for finding a basis of the fixed poins subgroup of an automorphism of a free group of finite rank. This is a joint work with O. Maslakova.