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Idempotent-generated subsemigroups of the symmetric semigroup of degree four: computer investigations.
Semigroup forum, Tome 31 (1985), pp. 119-122 Cet article a éte moissonné depuis la source European Digital Mathematics Library

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Mots-clés : subsemigroups of the symmetric semigroup, idempotents, lattice of subsemigroups 
@article{SF_1985__31_134740,
     author = {K. Todorov and B. Bijev},
     title = {Idempotent-generated subsemigroups of the symmetric semigroup of degree four: computer investigations.},
     journal = {Semigroup forum},
     pages = {119--122},
     year = {1985},
     volume = {31},
     zbl = {0565.20047},
     url = {http://geodesic.mathdoc.fr/item/SF_1985__31_134740/}
}
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TI  - Idempotent-generated subsemigroups of the symmetric semigroup of degree four: computer investigations.
JO  - Semigroup forum
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SP  - 119
EP  - 122
VL  - 31
UR  - http://geodesic.mathdoc.fr/item/SF_1985__31_134740/
ID  - SF_1985__31_134740
ER  - 
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%A K. Todorov
%A B. Bijev
%T Idempotent-generated subsemigroups of the symmetric semigroup of degree four: computer investigations.
%J Semigroup forum
%D 1985
%P 119-122
%V 31
%U http://geodesic.mathdoc.fr/item/SF_1985__31_134740/
%F SF_1985__31_134740
K. Todorov; B. Bijev. Idempotent-generated subsemigroups of the symmetric semigroup of degree four: computer investigations.. Semigroup forum, Tome 31 (1985), pp. 119-122. http://geodesic.mathdoc.fr/item/SF_1985__31_134740/