Abstract for the talk on 11.06.2021 (10:00 h)

Seminar on Nonlinear Algebra

Rainer Sinn (University of Leipzig)
Families of Faces and the Normal Cycle

We study families of faces for convex semi-algebraic sets via the normal cycle. This is a semi-algebraic set similar to the conormal variety in projective duality theory. Families of faces are represented by a finite list of patches. This is joint work with Daniel Plaumann and Jannik Wesner.