Quasivarieties of Graphs and Independent Axiomatizability

A. V. Kravchenko; A. V. Yakovlev

doi:10.3103/S1055134418010042

Quasivarieties of Graphs and Independent Axiomatizability

A. V. Kravchenko, A. V. Yakovlev

Кафедра дискретной математики и информатики ММФ и СУНЦ

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

3 Цитирования (Scopus)

Аннотация

In the present article, we continue to study the complexity of the lattice of quasivarieties of graphs. For every quasivariety K of graphs that contains a non-bipartite graph, we find a subquasivariety K′ ⊆ K such that there exist 2^ω subquasivarieties K″ ∈ L_q(K′) without covers (hence, without independent bases for their quasi-identities in K′).

Язык оригинала	английский
Страницы (с-по)	53-59
Число страниц	7
Журнал	Siberian Advances in Mathematics
Том	28
Номер выпуска	1
DOI	https://doi.org/10.3103/S1055134418010042
Состояние	Опубликовано - 1 янв 2018

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10.3103/S1055134418010042

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Quasivarieties of Graphs and Independent Axiomatizability

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