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\(\mathcal Q\)-universal quasivarieties of graphs. (Russian, English) Zbl 1062.08013

Algebra Logika 41, No. 3, 311-325 (2002); translation in Algebra Logic 41, No. 3, 173-181 (2002).
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.

MSC:

08C15 Quasivarieties
05C99 Graph theory
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