Abstract for the talk on 25.07.2017 (11:00 h)

Seminar on Nonlinear Algebra

Rainer Sinn (MPI MIS, Leipzig)
Positive Semidefinite Matrix Completion and Sums of Squares

We focus on geometric (convex and algebraic) aspects of the positive semidefinite matrix completion problem. Of particular interest will be the geometry of Hankel spectrahedra.