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Title of article :
Presentations for subsemigroups — applications to ideals of semigroups Original Research Article
Author/Authors :
C.M. Campbell، نويسنده , , E.F. Robertson، نويسنده , , N. Ruskuc، نويسنده , , R.M Thomas، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1998
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Abstract :
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
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Link To Document :