RT info:eu-repo/semantics/article T1 On spectra of weighted graphs of order ≤5 A1 Marijuán López, Carlos A1 Pisonero Pérez, Miriam K1 Weighted graphs K1 Grafos ponderados K1 Adjacency matrix K1 Matriz de adyacencia K1 Eigenvalue problems K1 Problemas de valor propio AB The problem of characterizing the real spectra of weighted graphs is only solvedfor weighted graphs of order n ≤ 4. We overview these known results, that comefrom the context of nonnegative matrices, and give a new method to rule out manyunresolved spectra of size 5. PB Elsevier SN 1571-0653 YR 2018 FD 2018 LK http://uvadoc.uva.es/handle/10324/35985 UL http://uvadoc.uva.es/handle/10324/35985 LA eng NO Electronic Notes in Discrete Mathematics, 2018, vol. 68. p. 95-100 NO Producción Científica DS UVaDOC RD 22-dic-2024