Montreal Geometric & Combinatorial Group Theory Seminar

Speaker: Inna Bumagin

Title: The Hanna Neumann Conjecture is Decidable!
Date:   3:30PM, Wednesday, October 8, 2003
Place:  Room 923, Burnside Hall, McGill University

Abstract: The Hanna Neumann Conjecture states that the rank of the intersection

of two subgroups H and K of a free group is bounded by (rank(H)-1)(rank(K)-1)+1.

We prove that the Hanna Neumann Conjecture is Decidable. This is a joint work with Olga Kharlampovich and Nicholas Toui-kan.