The Buchweitz set of a numerical semigroup

S. Eliahou, J. I. García-García, D. Marín-Aragón +1

Let $A\subset \mathbb{Z}$ be a finite subset. We denote by $\mathcal{B}(A)$ the set of all integers $n\ge 2$ such that $|nA|>(2n-1)(|A|-1)$, where $nA=A+\cdots +A$ denotes the…