2 problems

Let $X$ and $Y$ be orbifolds related by an orbifold symplectic flop. The orbifold quantum cohomology rings are denoted by $QH^\ast_{CR}(X)$ and $QH^\ast_{CR}(Y)$. Ruan's conjecture…

Let $(M^s,Z)$ and $(M^{sf},Z)$ be the singular symplectic flop spaces considered in the paper, with corresponding insertions $\alpha_1^s,\alpha_2^s,\alpha_3^s$ and their pullbacks…