Categorical primitive forms and Gromov-Witten invariants of $A_n$ singularities

Andrei Caldararu, Si Li, Junwu Tu

We introduce a categorical analogue of Saito's notion of primitive forms. Let $W$ denote the potential $\frac{1}{n+1}{x}^{n+1}$. For the category $MF(W)$ of matrix factorizations of…