Geodesic
Idempotent cross-sections of J-classes.
Semigroup forum, Tome 26 (1983), pp. 103-110.

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Mots-clés : algebraic semigroups, connected algebraic monoid, group of units, lattice of regular J-classes, cross-section lattice, Weyl group, idempotents 
@article{SF_1983__26_134595,
     author = {M. Putcha},
     title = {Idempotent cross-sections of {J-classes.}},
     journal = {Semigroup forum},
     pages = {103--110},
     publisher = {mathdoc},
     volume = {26},
     year = {1983},
     zbl = {0507.20034},
     url = {http://geodesic.mathdoc.fr/item/SF_1983__26_134595/}
}
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M. Putcha. Idempotent cross-sections of J-classes.. Semigroup forum, Tome 26 (1983), pp. 103-110. http://geodesic.mathdoc.fr/item/SF_1983__26_134595/