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Trees with Matrix Weights: Laplacian Matrix and Characteristic-like Vertices
[article]
2022
arXiv
pre-print
It is known that there is an alternative characterization of characteristic vertices for trees with positive weights on their edges via Perron values and Perron branches. Moreover, the algebraic connectivity of a tree with positive edge weights can be expressed in terms of Perron value. In this article, we consider trees with matrix weights on their edges. More precisely, we are interested in trees with the following classes of matrix edge weights: 1. positive definite matrix weights, 2. lower
arXiv:2009.05996v4
fatcat:axka4mzbizfwtlfhqk7iin6j6q