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- W4287824815 abstract "A signed graph is said to be sign-symmetric if it is switching isomorphic to its negation. Bipartite signed graphs are trivially sign-symmetric. We give new constructions of non-bipartite sign-symmetric signed graphs. Sign-symmetric signed graphs have a symmetric spectrum but not the other way around. We present constructions of signed graphs with symmetric spectra which are not sign-symmetric. This, in particular answers a problem posed by Belardo, Cioabu{a}, Koolen, and Wang (2018)." @default.
- W4287824815 created "2022-07-26" @default.
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- W4287824815 date "2020-03-22" @default.
- W4287824815 modified "2023-10-16" @default.
- W4287824815 title "On sign-symmetric signed graphs" @default.
- W4287824815 doi "https://doi.org/10.48550/arxiv.2003.09981" @default.
- W4287824815 hasPublicationYear "2020" @default.
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