Chen-Ruan cohomology of some moduli spaces, II

الأصل · EN

Let X be a compact connected Riemann surface of genus at least two. Let r be a prime number and ξa holomorphic line bundle on it such that r is not a divisor of degree(ξ). Let Mξ(r) denote the moduli space of stable vector bundles over X of rank r and determinant ξ. By Γwe will denote the group of line bundles L over X such that L⊗ ʳ is trivial. This group Γacts on Mξ(r). We compute the Chen-Ruan cohomology of the corresponding orbifold.