Tue, 03 Nov 2015
16:00 -
17:00
C5
Equivalence relations for quadratic forms
Detlev Hoffmann
(Dortmund)
Abstract
We investigate equivalence relations for quadratic forms that can be expressed in terms of algebro-geometric properties of their associated quadrics, more precisely, birational, stably birational and motivic equivalence, and isomorphism of quadrics. We provide some examples and counterexamples and highlight some important open problems.