|
|||||
|
|
A variety of semigroups without an irreducible basis for identities |
|
| Authors: | A. N. Trakhtman |
| Affiliation: | (1) Ural Polytechnic Institute, USSR |
| Abstract: | An example of a variety of semigroups not having an irreducible basis for identities is given. Also a variety of semigroups, the lattice of subvarieties of which contains a nonidentity element without any coverings, is constructed.Translated from Matematicheskie Zametki, Vol. 21, No. 6, pp. 865–872, June, 1977. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |