THE COMPLEXITY OF QUASIVARIETY LATTICES. II

被引：0

作者：

Schwidefsky, M. V. ^{[1
]}

机构：

[1] Novosibirsk State Univ, Pirogova Str 1, Novosibirsk 630090, Russia

来源：

SIBERIAN ELECTRONIC MATHEMATICAL REPORTS-SIBIRSKIE ELEKTRONNYE MATEMATICHESKIE IZVESTIYA | 2023年 / 20卷 / 01期

基金：

俄罗斯科学基金会;

关键词：

inverse limit; quasi-equational basis; quasivariety; profinite structure; profinite quasivariety; DIFFERENTIAL GROUPOIDS; QUASIVARIETIES; UNIVERSALITY; CONGRUENCES; PRINCIPAL;

D O I：

10.33048/semi.2023.20.030

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

We prove that if a quasivariety K contains a finite B*-class relative to some subquasivariety and some variety possessing some additional property, then K contains continuum many Q-universal non-profinite subquasivarieties having an independent quasi-equational basis as well as continuum many Q-universal non-profinite subquasivarieties having no such basis.

引用

页码：501 / 513

页数：13

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