Title of article :
Presentations for subsemigroups — applications to ideals of semigroups Original Research Article
C.M. Campbell، نويسنده , , E.F. Robertson، نويسنده , , N. Ruskuc، نويسنده , , R.M Thomas، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1998
A method for finding presentations for subsemigroups of semigroups defined by presentations is used to investigate when ideals are finitely presented. It is shown that an ideal of a finitely presented semigroup is not necessarily finitely presented, even if it is finitely generated as a semigroup. By way of contrast, it is then proved that in a free product of two, or indeed of finitely many, finite semigroups, every right ideal which is finitely generated as a semigroup is finitely presented.
Journal title :
Journal of Pure and Applied Algebra