Matrices Totally Positive Relative to a Tree, II
Combinatorics
2015-02-19 v2
Abstract
In this paper we prove that for a general tree , if is T-TP, all the submatrices of associated with the deletion of pendant vertices are -matrices, and , then the smallest eigenvalue has an eigenvector signed according to .
Cite
@article{arxiv.1003.5160,
title = {Matrices Totally Positive Relative to a Tree, II},
author = {R. S. Costas-Santos and C. R. Johnson},
journal= {arXiv preprint arXiv:1003.5160},
year = {2015}
}
Comments
11 pages, 2 figures, submitted to LAA