Geodesic
Purity in the category of M-sets.
Semigroup forum, Tome 20 (1980), pp. 157-170.

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

Mots-clés : pure extensions, semiautomata, injective envelope, left M-sets, absolutely pure, left ideals, semilattice of groups, right M-sets 
@article{SF_1980__20_134412,
     author = {P. Normak},
     title = {Purity in the category of {M-sets.}},
     journal = {Semigroup forum},
     pages = {157--170},
     publisher = {mathdoc},
     volume = {20},
     year = {1980},
     zbl = {0521.20050},
     url = {http://geodesic.mathdoc.fr/item/SF_1980__20_134412/}
}
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P. Normak. Purity in the category of M-sets.. Semigroup forum, Tome 20 (1980), pp. 157-170. http://geodesic.mathdoc.fr/item/SF_1980__20_134412/