Title
Sign patterns of inverse doubly-nonnegative matrices
Abstract
The sign patterns of inverse doubly-nonnegative matrices are examined. A necessary and sufficient condition is developed for a sign matrix to correspond to an inverse doubly-nonnegative matrix. In addition, for a doubly-nonnegative matrix whose graph is a tree, the inverse is shown to have a unique sign pattern, which can be expressed in terms of a two-coloring of the graph.
Year
DOI
Venue
2019
10.1016/j.laa.2020.10.005
Linear Algebra and its Applications
Keywords
DocType
Volume
15B48,15B35,15B57
Journal
610
ISSN
Citations 
PageRank 
0024-3795
0
0.34
References 
Authors
6
2
Name
Order
Citations
PageRank
Sandip Roy130153.03
Mengran Xue26113.36