Large sets of strongly cospectral vertices in Cayley graphs

Published 11 Jul 2022 in math.CO | (2207.05211v4)

Abstract: Strong cospectrality is an equivalence relation on the set of vertices of a graph that is of importance in the study of quantum state transfer in graphs. We construct families of abelian Cayley graphs in which the number of mutually strongly cospectral vertices can be arbitrarily large.

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Authors (1)

Peter Sin

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