info:eu-repo/semantics/article
Equational definability of (complementary) central elements
Fecha
2016-05Registro en:
Badano, Mariana; Vaggione, Diego Jose; Equational definability of (complementary) central elements; World Scientific; International Journal of Algebra and Computation; 26; 03; 5-2016; 509-532
0218-1967
1793-6500
CONICET Digital
CONICET
Autor
Badano, Mariana
Vaggione, Diego Jose
Resumen
For a variety with weak existentially definable factor congruences, we characterize whenthe properties "e is a central element" and "e and f are complementary central elements"are definable by (∀ V p = q)-formulas and by (V p = q)-formulas.