Structure of Quasivariety Lattices. I. Independent Axiomatizability

被引：0

作者：

A. V. Kravchenko

A. M. Nurakunov

M. V. Schwidefsky

机构：

[1] Sobolev Institute of Mathematics,

[2] Novosibirsk State University,undefined

[3] Siberian Institute of Management,undefined

[4] Novosibirsk State Technical University,undefined

[5] Institute of Mathematics,undefined

[6] National Academy of Science of the Kyrgyz Republic,undefined

来源：

Algebra and Logic | 2019年 / 57卷

关键词：

independent basis; quasi-identity; quasivariety; quasivariety lattice; Q-universality;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We find a sufficient condition for a quasivariety K to have continuum many subquasivarieties that have no independent quasi-equational bases relative to K but have ω-independent quasi-equational bases relative to K. This condition also implies that K is Q-universal.

引用

页码：445 / 462

页数：17

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