On pseudo-Frobenius elements of submonoids of ${\mathbb{N}}^d$

J. I. García-García, I. Ojeda, J. C. Rosales +1

In this paper we study those submonoids of ${\mathbb{N}}^d$ which a non-trivial pseudo-Frobenius set. In the affine case, we prove that they are the affine semigroups whose associate…