Equational definability of (complementary) central elements

被引：3
|
作者：
Badano, Mariana V. [1 ]
Vaggione, Diego J. [1 ]
机构：
[1] Univ Nacl Cordoba, Fac Matemat Astron & Fis, Ciudad Univ, RA-5000 Cordoba, Argentina
来源：
INTERNATIONAL JOURNAL OF ALGEBRA AND COMPUTATION | 2016年 / 26卷 / 03期
关键词：
Central element; Boolean factor congruences; decomposition operation; FACTOR CONGRUENCES; VARIETIES;
D O I：
10.1142/S0218196716500211
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
For a variety with weak existentially definable factor congruences, we characterize when the properties "(e) over right arrow is a central element" and "(e) over right arrow and (f) over right arrow are complementary central elements" are definable by (for all Lambda p = q)-formulas and by (Lambda p = q)-formulas.
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页码：509 / 532
页数：24
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