2 problems

Let $M_D$ and $M_{(1,\omega_i)}$ be the quantum multiplication operators by the divisor classes $D$ and $(1,\omega_i)$, respectively, acting on the quantum cohomology of the Hilber…

Let $4\mathcal{A}_{n}4$ be the surface $4A_n4$-resolution, and let $4\mathrm{Hilb}_{m}(\mathcal{A}_{n})4$ be its Hilbert scheme. The operators of quantum multiplication by the divi…