Conjecture of Wilf: a survey

M Delgado - Numerical Semigroups: IMNS 2018, 2020 - Springer
This paper intends to survey the vast literature devoted to a problem posed by Wilf in 1978
which, despite the attention it attracted, remains unsolved. As it frequently happens with …

[PDF][PDF] NumericalSgps

M Delgado, PA Garcıa-Sánchez… - A GAP package for …, 2015 - docs.gap-system.org
A numerical semigroup is a subset of the set N of nonnegative integers that is closed under
addition, contains 0 and whose complement in N is finite. The smallest positive integer …

Almost canonical ideals and GAS numerical semigroups

M D'Anna, F Strazzanti - Communications in Algebra, 2021 - Taylor & Francis
We propose the notion of GAS numerical semigroup which generalizes both almost
symmetric and 2-AGL numerical semigroups. Moreover, we introduce the concept of almost …

Almost symmetric numerical semigroups with high type

PA Garcia-Sanchez, I Ojeda - Turkish Journal of Mathematics, 2019 - journals.tubitak.gov.tr
Almost symmetric numerical semigroups with high type Page 1 Turkish Journal of
Mathematics Volume 43 Number 5 Article 35 1-1-2019 Almost symmetric numerical …

Numerical Semigroups of small and large type

D Singhal - International Journal of Algebra and Computation, 2021 - World Scientific
A numerical semigroup is a sub-semigroup of the natural numbers that has a finite
complement. Some of the key properties of a numerical semigroup are its Frobenius number …