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oai:uvadoc.uva.es:10324/359852025-03-26T19:10:03Zcom_10324_32197com_10324_952com_10324_894col_10324_32199

On spectra of weighted graphs of order ≤5 Marijuán López, Carlos Pisonero Pérez, Miriam Producción Científica The problem of characterizing the real spectra of weighted graphs is only solved for weighted graphs of order n ≤ 4. We overview these known results, that come from the context of nonnegative matrices, and give a new method to rule out many unresolved spectra of size 5. 2019-05-09T07:06:01Z 2019-05-09T07:06:01Z 2018 info:eu-repo/semantics/article Electronic Notes in Discrete Mathematics, 2018, vol. 68. p. 95-100 1571-0653 http://uvadoc.uva.es/handle/10324/35985 10.1016/j.endm.2018.06.017 eng https://www.sciencedirect.com/science/article/pii/S1571065318301082 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ © 2018 Elsevier Attribution-NonCommercial-NoDerivatives 4.0 International Elsevier SI