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
收藏
页码：445 / 462
页数：17
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