Geodesic
Restricted congruence regularity of algebras
Acta mathematica Universitatis Comenianae, Tome 71 (2002) no. 1 
I. Chajda and H. Langer. Restricted congruence regularity of algebras. Acta mathematica Universitatis Comenianae, Tome 71 (2002) no. 1. http://geodesic.mathdoc.fr/item/AMUC_2002_71_1_a1/
@article{AMUC_2002_71_1_a1,
     author = {I. Chajda and H. Langer},
     title = {Restricted congruence regularity of algebras},
     journal = {Acta mathematica Universitatis Comenianae},
     year = {2002},
     volume = {71},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/AMUC_2002_71_1_a1/}
}
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Voir la notice de l'article provenant de la source Comenius University

An algebra $ \mathcal A $ is called restricted regular with respect to a subset $M$ of its base set if every single class of some congruence $\Theta$ on $ \mathcal A $ determines $\Theta|M$. A variety is called restricted regular with respect to a unary term $t$ if every of its members $(A,F)$ is restricted regular with respect to $t(A)$. The well-known results on (weak) regularity are generalized to the "restricted case".