The notion of an almost symmetric numerical semigroup was given by V. Barucci and R. Fröberg in J. Algebra, 188, 418–442 (1997). We characterize almost symmetric numerical …
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 …
M D'Anna, F Strazzanti - Semigroup forum, 2013 - Springer
In this paper we present and study the numerical duplication of a numerical semigroup, a construction that, starting with a numerical semigroup S and a semigroup ideal E⊆ S …
JC Rosales - Bulletin of the London Mathematical Society, 2008 - academic.oup.com
One half of a pseudo-symmetric numerical semigroup Page 1 Bull. London Math. Soc. 40 (2008) 347–352 Cо2008 London Mathematical Society doi:10.1112/blms/bdn010 One half of a …
Full article: Every Numerical Semigroup is One Half of Infinitely Many Symmetric Numerical Semigroups Skip to Main Content Taylor and Francis Online homepage Taylor and Francis …
J Herzog, K Watanabe - Semigroup Forum, 2019 - Springer
We study almost symmetric numerical semigroups and semigroup rings. We describe a characteristic property of the minimal free resolution of the semigroup ring of an almost …
This paper gives a solution to the Diophantine Frobenius problem for pseudo-symmetric numerical semigroups with embedding dimension three. We also describe a presentation for …
We study numerical semigroups generated by intervals and solve the following problems related to such semigroups: the membership problem, give an explicit formula for the …