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Projectives of finite regular semigroups

โœ Scribed by P.G Trotter

Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
779 KB
Volume
77
Category
Article
ISSN
0021-8693

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๐Ÿ“œ SIMILAR VOLUMES

Weak projectives of finite semigroups
Weak projectives of finite semigroups
โœ Yevhen Zelenyuk ๐Ÿ“‚ Article ๐Ÿ“… 2003 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 115 KB

It is described weak projectives in the category of finite semigroups. These are precisely finite weak projectives in the category of compact right topological semigroups.

Idempotents, regular elements and sequen
Idempotents, regular elements and sequences from finite semigroups
โœ T.E. Hall; M.V. Sapir ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 483 KB

If n is the number of nonidempotent elements of a finite semigroup S, it is shown that each sequence of length 2 n of elements of S contains a consecutive subsequence whose product is an idempotent element, and that 2 n is the best possible among all finite semigroups with n nonidempotent elements.