Graphs of unitary matrices
Combinatorics
2007-05-23 v3 Quantum Physics
Abstract
The support of a matrix M is the (0,1)-matrix with ij-th entry equal to 1 if the ij-th entry of M is non-zero, and equal to 0, otherwise. The digraph whose adjacency matrix is the support of M is said to be the digraph of M. This paper observes some structural properties of digraphs of unitary matrices.
Keywords
Cite
@article{arxiv.math/0303084,
title = {Graphs of unitary matrices},
author = {Simone Severini},
journal= {arXiv preprint arXiv:math/0303084},
year = {2007}
}
Comments
19 pages. Accepted for publication in Ars Combinatoria