Counterexamples for Cohen-Macaulayness of Lattice Ideals

Laura Felicia Matusevich, Aleksandra Sobieska

Let $\mathcal{L}\subset {\mathbb{Z}}^n$ be a lattice, $I$ its corresponding lattice ideal, and $J$ the toric ideal arising from the saturation of $\mathcal{L}$. We produce infinitely…