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Autores principales: Hladký, Jan, Iľkovič, Daniel, León, Jared, Shu, Xichao
Formato: Preprint
Publicado: 2024
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Acceso en línea:https://arxiv.org/abs/2411.13229
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author Hladký, Jan
Iľkovič, Daniel
León, Jared
Shu, Xichao
author_facet Hladký, Jan
Iľkovič, Daniel
León, Jared
Shu, Xichao
contents In this short note, we introduce cospectral graphons, paralleling the notion of cospectral graphs. As in the graph case, we give three equivalent definitions: by equality of spectra, by equality of cycle densities, and by a unitary transformation. We also give an example of two cospectral graphons that cannot be approximated by two sequences of cospectral graphs in the cut distance.
format Preprint
id arxiv_https___arxiv_org_abs_2411_13229
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On cospectral graphons
Hladký, Jan
Iľkovič, Daniel
León, Jared
Shu, Xichao
Combinatorics
In this short note, we introduce cospectral graphons, paralleling the notion of cospectral graphs. As in the graph case, we give three equivalent definitions: by equality of spectra, by equality of cycle densities, and by a unitary transformation. We also give an example of two cospectral graphons that cannot be approximated by two sequences of cospectral graphs in the cut distance.
title On cospectral graphons
topic Combinatorics
url https://arxiv.org/abs/2411.13229