Generalized Transformation Semigroups Whose Sets of Quasi-ideals and Bi-ideals Coincide

  • Chinram, Ronnason (Department of Mathematics, Faculty of Science, Prince of Songkla University)
  • 투고 : 2003.08.13
  • 발행 : 2005.06.23

초록

Let BQ be the class of all semigroups whose bi-ideals are quasi-ideals. It is known that regular semigroups, right [left] 0-simple semigroups and right [left] 0-simple semigroups belong to BQ. Every zero semigroup is clearly a member of this class. In this paper, we characterize when generalized full transformation semigroups and generalized Baer-Levi semigroups are in BQ in terms of the cardinalities of sets.

키워드

참고문헌

  1. C. R. Acad. Paris v.252 Demi-groups quasi-inversif Calais, J.
  2. The Algebraic Theory of Semigroups, Vol. I. Clifford, A.H.;Preston, G.B.
  3. Bull. Amer. Math. Soc. v.58 Associated groups for a semigroup Good, R.A.;Hughes, D.R.
  4. Techniques of Semigroup Theory Higgins, P.
  5. Publ. Math. Debrecen v.16 On bi-ideals and quasi-ideals in semigroups Kapp, K.M.
  6. Acta. Sci. Math. v.22 Generalized ideals in semigroups Lajos, S.
  7. Publ. Math. Debrecen v.4 Uber die quasiideale von halbgruppen Steinfeld, O.
  8. Quasi-ideals in Rings and Semigroups Steinfeld, O.