{ "id": "2411.13229", "version": "v1", "published": "2024-11-20T11:43:04.000Z", "updated": "2024-11-20T11:43:04.000Z", "title": "On cospectral graphons", "authors": [ "Jan Hladký", "Daniel Iľkovič", "Jared León", "Xichao Shu" ], "comment": "7 pages", "categories": [ "math.CO" ], "abstract": "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.", "revisions": [ { "version": "v1", "updated": "2024-11-20T11:43:04.000Z" } ], "analyses": { "keywords": [ "cospectral graphons", "cospectral graphs", "graph case", "cut distance", "short note" ], "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable" } } }