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The Intersection of Pseudovarieties of Central Simple Semigroups

โœ Scribed by Edmond W.H. Lee; Norman R. Reilly

Publisher
Springer
Year
2006
Tongue
English
Weight
406 KB
Volume
73
Category
Article
ISSN
0037-1912

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๐Ÿ“œ SIMILAR VOLUMES

The G-Exponent of a Pseudovariety of Sem
The G-Exponent of a Pseudovariety of Semigroups
โœ A Escada ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 160 KB

Ash's proof of the Pointlike Conjecture provides an algorithm for calculating the group-pointlike subsets of a finite semigroup S. We denote by P G S the subsemigroup of P S , the elements of which are the group-pointlike subsets of S. This paper is concerned with some properties of the operator G ,

On semidirectly closed pseudovarieties o
On semidirectly closed pseudovarieties of aperiodic semigroups
โœ M.Lurdes Teixeira ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 193 KB

The aim of this work is to study the unknown intervals of the lattice of aperiodic pseudovarieties which are semidirectly closed and answer questions proposed by Almeida in his book "Finite Semigroups and Universal Algebra". The main results state that the intervals [V \* (B2); ER โˆฉ LR] and [V \* (B