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Graphs of unitary matrices

Simone Severini
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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.

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Simone Severini. 2005-12-17. Graphs of unitary matrices. https://arxiv.org/abs/math/0303084

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