Decomposing Bj\"orner's Matrix
Combinatorics
2010-12-01 v1
Abstract
We give an alternative proof of a (former) conjecture of Bj\"orner stating that the matrix expressing face numbers in terms of g numbers is totally non-negative. We briefly discuss the case of simple flag polytopes.
Keywords
Cite
@article{arxiv.1011.6612,
title = {Decomposing Bj\"orner's Matrix},
author = {Światosław R. GaL},
journal= {arXiv preprint arXiv:1011.6612},
year = {2010}
}
Comments
5 pages, no figures