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\mathcal{Q}-Universal Quasivarieties of Graphs

Authors:	A V Kravchenko

Institution:	(1) Institute of Mathematics, Siberian Branch, Russian Academy of Sciences, Akademika Koptyuga Prospekt, Novosibirsk, 630090

Abstract:	It is proved that a quasivariety K of undirected graphs without loops is $\mathcal{Q}$ -universal if and only if K contains some non-bipartite graph.

Keywords:	gif" alt=" $$\mathcal{Q}$$ -universal quasivariety" target="_blank">" align="middle" border="0"> -universal quasivariety undirected graph non-bipartite graph
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