Talk page

Title:
Hyperbolicity, determinants, and reciprocal linear spaces

Speaker:
Cynthia Vinzant

Abstract:
A reciprocal linear space is the image of a linear space under coordinate-wise inversion. This nice algebraic variety appears in many contexts and its structure is governed by the combinatorics of the underlying hyperplane arrangement. A reciprocal linear space is also an example of a hyperbolic variety, meaning that there is a family of linear spaces all of whose intersections with it are real. This special real structure is witnessed by a determinantal representation of its Chow form in the Grassmannian. In this talk, I will introduce reciprocal linear spaces and discuss the relation of their algebraic properties to their combinatorial and real structure

Link:
https://www.msri.org/workshops/819/schedules/23171

Workshop:
MSRI- Geometric and topological combinatorics: Modern techniques and methods