共 13 条
- [1] Clarke G.T.(2000)A generalisation of the concept of an inflation of a semigroup Semigroup Forum 60 172-186
- [2] Monzo R.A.R.(1982)Residually small varieties of semigroups Izv. Vyss. Ucebn. Zaved. Mat. 11 21-29
- [3] Golubov E.A.(1977)Semigroups with an idempotent power. I. Word problems Semigroup Forum 14 137-141
- [4] Sapir M.V.(1968)Examples of varieties of semigroups Mat. Zametki 3 663-670
- [5] Gerhard J.A.(1981)On varieties of periodic semigroups Izv. Vyss. Ucebn. Zaved. Mat. 4 48-55
- [6] Murskiı̌ V.L.(1990)A remark on semigroup varieties of finite index Izv. Vyss. Ucebn. Zaved. Mat. 34 79-83
- [7] Sapir M.V.(1995)A characterization of semigroup varieties of finite index in the language of “forbidden divisors” Izv. Vyss. Ucebn. Zaved. Mat. 1 91-99
- [8] Sukhanov E.V.(2008)Upper-modular elements of the lattice of semigroup varieties Algebra Univers. 59 405-428
- [9] Tishchenko A.V.(2008)Lower-modular elements of the lattice of semigroup varieties. II Acta Sci. Math. (Szeged) 74 539-556
- [10] Tishchenko A.V.(undefined)undefined undefined undefined undefined-undefined