Marie-Charlotte Brandenburg (MPI MIS, Leipzig)
Friday, June 18, 2021 - 11:00
MPI fur Mathematik in den Naturwissenschaften Leipzig
Inselstr. 22, 04103 Leipzig, E1 05 (Leibniz-Saal), 1. Etage
We consider the tropicalization of determinantal varieties of matrices of rank at most 2 and determine which cones correspond to the tropicalization of positive matrices. We give a combinatorial description of this positive part in terms of tropically collinear point configurations, bicolored phylogenetic trees and perfect matchings in bipartite graphs. This is joint work in progress with Georg Loho and Rainer Sinn.
submitted by Saskia Gutzschebauch (Saskia.Gutzschebauch@mis.mpg.de, 0341 9959 50)