Moore-Penrose inverse of distance Laplacians of trees are Z matrices

2022/07/23 by Balaji, R., Gupta, Vinayak
#05C50 #Combinatorics (math.CO) #FOS: Mathematics

paper · doi:10.48550/arxiv.2207.12402

Abstract

We show that all off-diagonal entries in the Moore-Penrose inverse of the distance Laplacian matrix of a tree are non-positive.

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