Email matthias.nagel (at) math.mcmaster.ca HH414 McMaster University 1280 Main Street Hamilton, Ontario
My field of study is geometric topology. I am interested invarious minimality questions. Among them is the study of the genus function of manifolds in dimension 3 and 4.
One of my favourite tools for studying these questions is twisted Reidemeister torsion. It is connected to Seiberg-Witten theory and the classical Alexander polynomial for knots.