Ranks of binary relations.
Semigroup forum, Tome 54 (1997) no. 2, pp. 381-401.

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

Mots-clés : semigroups of relations, Boolean matrices, unambiguous sums, unambiguous products, unambiguous rank, unambiguous decompositions, relations, transitive unambiguous monoids
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     author = {V. Froidure},
     title = {Ranks of binary relations.},
     journal = {Semigroup forum},
     pages = {381--401},
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     number = {2},
     year = {1997},
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V. Froidure. Ranks of binary relations.. Semigroup forum, Tome 54 (1997) no. 2, pp. 381-401. http://geodesic.mathdoc.fr/item/SF_1997__54_2_135536/