Givental-space formulation of the Crepant Resolution Conjecture

Let X\mathcal{X} be a toric Gorenstein orbifold and YY a crepant resolution, with Givental spaces

HZ=H(Z)O(C)\mathcal{H}_\mathcal{Z}=H(\mathcal{Z})\otimes\mathcal{O}(\mathbb{C}^*)

for Z=X,Y\mathcal{Z}=\mathcal{X},Y, equipped with the symplectic form ΩZ(f,g)=Resz=0η(f(z),g(z))Z\Omega_\mathcal{Z}(f,g)=\operatorname*{Res}_{z=0}\eta(f(-z),g(z))_\mathcal{Z} and Lagrangian cones LX,LY\mathcal{L}_\mathcal{X},\mathcal{L}_Y determined by genus-zero Gromov--Witten theory. Givental-space formulation of the Crepant Resolution Conjecture. There exists a C((z1))\mathbb{C}((z^{-1}))-linear symplectic isomorphism

UρX,Y:HXHY\mathbb{U}_\rho^{\mathcal{X},Y}:\mathcal{H}_\mathcal{X}\longrightarrow\mathcal{H}_Y

that matches the cones after suitable analytic continuation of the small quantum-cohomology parameters:

UρX,Y(LX)=LY.\mathbb{U}_\rho^{\mathcal{X},Y}(\mathcal{L}_\mathcal{X})=\mathcal{L}_Y.

This is the cone-level formulation of the closed crepant resolution conjecture, attributed in the source to Coates--Corti--Iritani--Tseng and Coates--Ruan; the source gives no general resolution status.

Sources & referencesView supporting material

Primary source

Andrea Brini, Renzo Cavalieri and Dustin Ross, “The open string McKay correspondence for type A singularities”, arXiv:1303.0723 (2014).

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