An extension of Wilf's conjecture to affine semigroups

J. I. García-García, D. Marín-Aragón, A. Vigneron-Tenorio

Let $\CaC\subset \Q^p$ be a rational cone. An affine semigroup $S\subset \CaC$ is a $\CaC$-semigroup whenever $(\CaC\setminus S)\cap \N^p$ has only a finite number of elements. In…