Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4655196 | Journal of Combinatorial Theory, Series A | 2015 | 41 Pages |
Abstract
The tropical Stiefel map associates to a tropical matrix A its tropical Plücker vector of maximal minors, and thus a tropical linear space L(A)L(A). We call the L(A)L(A)s obtained in this way Stiefel tropical linear spaces . We prove that they are dual to certain matroid subdivisions of polytopes of transversal matroids, and we relate their combinatorics to a canonically associated tropical hyperplane arrangement. We also explore a broad connection with the secondary fan of the Newton polytope of the product of all maximal minors of a matrix. In addition, we investigate the natural parametrization of L(A)L(A) arising from the tropical linear map defined by A.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics
Authors
Alex Fink, Felipe Rincón,