Geodesic
On congruences of ...x-normal semigroups.
Semigroup forum, Tome 43 (1991) no. 3, pp. 93-114.

Voir la notice de l'article provenant de la source European Digital Mathematics Library

Mots-clés : lattice of congruences, semigroup of transformations, symmetric group, -normal semigroup, injective transformations, defects, distributive lattice, cancellative congruences, group congruences 
@article{SF_1991__43_3_135099,
     author = {I. Levi and S. Seif},
     title = {On congruences of  ...x-normal semigroups.},
     journal = {Semigroup forum},
     pages = {93--114},
     publisher = {mathdoc},
     volume = {43},
     number = {3},
     year = {1991},
     zbl = {0727.20043},
     url = {http://geodesic.mathdoc.fr/item/SF_1991__43_3_135099/}
}
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I. Levi; S. Seif. On congruences of  ...x-normal semigroups.. Semigroup forum, Tome 43 (1991) no. 3, pp. 93-114. http://geodesic.mathdoc.fr/item/SF_1991__43_3_135099/