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On the structure of simplicial affine semigroups

Published online by Cambridge University Press:  11 July 2007

J. C. Rosales  and
P. A. García-Sánchez
J. C. Rosales
Affiliation:
Departamento de Álgebra, Universidad de Granada, E-18071 Granada, Spain; jrosales@ugr.es
P. A. García-Sánchez
Affiliation:
Departamento de Álgebra, Universidad de Granada, E-18071 Granada, Spain; pedro@ugr.es
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Abstract

We give a structure theorem for simplicial affine semigroups. From this result we deduce characterizations of some properties of semigroup rings of simplicial affine semigroups. We also compute an upper bound for the cardinality of a minimal presentation of a simplicial affine semigroup.

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh Section A: Mathematics , Volume 130 , Issue 5 , October 2000 , pp. 1017 - 1028
Copyright
Copyright © Royal Society of Edinburgh 2000

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