On closed and absolutely closed varieties of posemigroups

被引：1

作者：

Bano, Sakeena ^{[1
]}

Shah, Aftab Hussain ^{[1
]}

Nabi, Muneer ^{[1
]}

机构：

[1] Cent Univ Kashmir, Dept Math, Ganderbal 191201, India

来源：

ASIAN-EUROPEAN JOURNAL OF MATHEMATICS | 2023年 / 16卷 / 02期

关键词：

Posemigroup; dominion; zigzag inequalities; permutative; variety; EPIMORPHISMS;

D O I：

10.1142/S1793557123500298

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

In this paper, we first show that the variety V of posemigroups satisfying an identity axy = axay is closed if it is V-convex. Next, we show that inverse posemigroups satisfying an identity x = xyx are absolutely closed. We also show that a convex variety of left [right] zero posemigroups is absolutely closed and finally U-0 is absolutely closed if so is U.

引用

页数：15

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