Department of Mathematics

Student Algebra & Combinatorics

  •  Nick Ovenhouse, MSU
  •  Total Positivity
  •  01/28/2019
  •  3:00 PM - 4:00 PM
  •  C517 Wells Hall

A matrix is "totally positive" if all of its minors are positive. We will discuss combinatorial models of total positivity using weighted graphs, as well as some criteria and characterizations for checking total positivity. If there is time, we will also discuss total positivity in the Grassmannian manifold, along with combinatorial models.



Department of Mathematics
Michigan State University
619 Red Cedar Road
C212 Wells Hall
East Lansing, MI 48824

Phone: (517) 353-0844
Fax: (517) 432-1562

College of Natural Science