Determinantal representations of hyperbolic curves

Series
Algebra Seminar
Time
Friday, September 19, 2014 - 3:05pm for 1 hour (actually 50 minutes)
Location
Skiles 005
Speaker
Daniel Plaumann – Universität Konstanz – http://www.math.uni-konstanz.de/~plaumann/
Organizer
Anton Leykin
We study symmetric determinantal representations of real hyperbolic curves in the projective plane. Such representations always exist by the Helton-Vinnikov theorem but are hard to compute in practice. In this talk, we will discuss some of the underlying algebraic geometry and show how to use polynomial homotopy continuation to find numerical solutions. (Joint work with Anton Leykin).