Karen Vogtmann is an American mathematician working primarily in the area of geometric group theory. She is known for having introduced, in a 1986 paper with Marc Culler, an object now known as the Culler–Vogtmann Outer space. Vogtmann is a Professor of Mathematics at Cornell University and The University of Warwick.
During her visit to the University of Geneva, Karen Vogtmann will give a mini-course related to the Outer space.
Symplectic derivations and automorphisms of free groups (Part I), Tuesday, October 31, 2017, 15:00, Villa Battelle
Symplectic derivations and automorphisms of free groups (Part II), Thursday, November 02, 2017, 10:00, Villa Battelle
Please see the website for more details: http://www.unige.ch/math/seminaires/lie-sem/