On semigroup presentations and efficiency


Ayik H. , KUYUCU F. , VATANSEVER B.

SEMIGROUP FORUM, cilt.65, ss.329-335, 2002 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 65 Konu: 3
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1007/s002330010142
  • Dergi Adı: SEMIGROUP FORUM
  • Sayfa Sayıları: ss.329-335

Özet

The purpose of this paper is twofold. First we determine some forms of the relations in a finite semigroup presentation with zero, deficiency which does or does not define a group. Moreover, we conclude that a finite Rees matrix semigroup M [G; I, Lambda; P] is efficient when G is efficient and the index sets I, Lambda are finite.