Injectives in varieties of completely regular semigroups
β Scribed by P.G. Trotter
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 963 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0022-4049
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π SIMILAR VOLUMES
We describe all minimal noncryptic e-varieties of regular semigroups, thus generalising earlier results by Rasin and Reilly that dealt with the completely regular and the inverse cases, respectively. As corollaries, we prove that an e-variety of regular semigroups is cryptic if and only if its inter
Next we consider when those idempotents are Ror &related. If idempotents ( A , B; 4) and (C, D; $) are R-(L)related, then it is necessary that A = C ( B = D). lluinma 2.4. [lo]. Idempdents ( A , B ; 4) and ( A , D ; $J) of depth 1 are R-related i f and e r r l y i f A x (b, d ) is poportional in P