The gluing of numerical semigroups

  • J.C. Rosales
  • P.A. García-Sánchez
Part of the Developments in Mathematics book series (DEVM, volume 20)


If K[V] is the ring of coordinates of a variety V, then V is said to be a complete intersection if its defining ideal is generated by the least possible number of polynomials. In the special case K[V] is taken to be a semigroup ring K[S], the generators of its defining ideal can be chosen to be binomials whose exponents correspond to a presentation of the monoid S (see [41]). In this way the concept of complete intersection translates to finitely generated monoids as those having the least possible number of relations in their minimal presentations.


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  1. 1.Department of Algebra, Faculty of SciencesUniversity of Granada, Campus University FuentenuevaGranadaSpain

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