The oversemigroups of a numerical semigroup

Autor: J. A. Jiménez Madrid, José Carlos Rosales, Pedro A. García-Sánchez, Juan Ignacio García-García
Rok vydání: 2003
Předmět:
Zdroj: Semigroup Forum. 67:145-158
ISSN: 1432-2137
0037-1912
DOI: 10.1007/s00233-002-0007-3
Popis: We study the set of numerical semigroups containing a given numerical semigroup. As an application we prove characterizations of irreducible numerical semigroups that unify some of the existing characterizations for symmetric and pseudo-symmetric numerical semigroups. Finally we describe an algorithm for computing a minimal decomposition of a numerical semigroup in terms of irreducible numerical semigroups.
Databáze: OpenAIRE