数学物理学报(英文版)

• 论文 • 上一篇    下一篇

A SPECIAL KIND OF PRINCIPAL CONGRUENCES ON MS-ALGEBRAS

罗从文   

  1. 三峡大学数学系, 宜昌 443002
  • 收稿日期:2005-09-29 修回日期:2006-05-08 出版日期:2008-04-20 发布日期:2008-04-20
  • 通讯作者: 罗从文
  • 基金资助:

    This work is supported by the Natural Science Foundation of Hubei Province

A SPECIAL KIND OF PRINCIPAL CONGRUENCES ON MS-ALGEBRAS

Luo Congwen   

  1. Department of Mathematics, Three Gorges University, Yichang 443002, China
  • Received:2005-09-29 Revised:2006-05-08 Online:2008-04-20 Published:2008-04-20
  • Contact: Luo Congwen

摘要:

In this article, for any a in the MS-algebra L, the author considers the congruence of the form defined by (x,y)∈θa \Leftrightarrow x∧a^\circ =y∧a^\circ and x∨a^{\circ\circ}=y∨a^{\circ\circ} . A characterization of subdirectly irreducible MS-algebras is given and it is also proved that the union of two principal congruences having this form is a principal congruence if and only if L∈K2∨K3.

关键词: MS-algebra, principal congruence, MS-space

Abstract:

In this article, for any a in the MS-algebra L, the author considers the congruence of the form defined by (x,y)∈θa \Leftrightarrow x∧a^\circ =y∧a^\circ and x∨a^{\circ\circ}=y∨a^{\circ\circ} . A characterization of subdirectly irreducible MS-algebras is given and it is also proved that the union of two principal congruences having this form is a principal congruence if and only if L∈K2∨K3.

Key words: MS-algebra, principal congruence, MS-space

中图分类号: 

  • 06D30