Geodesic
Some results on the dot-depth hierarchy.
Semigroup forum, Tome 46 (1993) no. 1, pp. 352-370.

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

Mots-clés : pseudo-variety of finite monoids, idempotent, variety of semigroups, variety of commutative idempotent monoids, Mal'cev product, dot-depth, aperiodic monoid 
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     author = {P. Weil},
     title = {Some results on the dot-depth  hierarchy.},
     journal = {Semigroup forum},
     pages = {352--370},
     publisher = {mathdoc},
     volume = {46},
     number = {1},
     year = {1993},
     zbl = {0778.20025},
     url = {http://geodesic.mathdoc.fr/item/SF_1993__46_1_135242/}
}
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P. Weil. Some results on the dot-depth  hierarchy.. Semigroup forum, Tome 46 (1993) no. 1, pp. 352-370. http://geodesic.mathdoc.fr/item/SF_1993__46_1_135242/