The d-critical structure on the Quot scheme of points of a Calabi-Yau 3-fold

Andrea T. Ricolfi, Michail Savvas

The Artin stack ${\mathcal{M}}_n$ of $0$-dimensional sheaves of length $n$ on ${\mathbb{A}}^3$ carries two natural d-critical structures in the sense of Joyce. One comes from its descrip…