The open crepant resolution conjecture for toric orbifolds

Let XX be a toric variety with at worst Gorenstein quotient singularities. Let X\mathcal{X} be the canonical toric orbifold with coarse moduli space XX, and let YY be a toric crepant resolution of XX. Denote the flat coordinates on their Kähler moduli spaces by qq and QQ, respectively, and let ll be the common dimension of these moduli spaces. Write WXLF(q)W^{LF}_{\mathcal{X}}(q) and WYLF(Q)W^{LF}_Y(Q) for their Lagrangian Floer superpotentials. Open crepant resolution conjecture. There exist ϵ>0\epsilon>0, a holomorphic coordinate change Q(q):(Δ(ϵ)R0)l(C×)lQ(q):(\Delta(\epsilon)-\mathbb{R}_{\leq 0})^l\to(\mathbb{C}^{\times})^l, and a choice of analytic continuation of the coefficients of WYLF(Q)W^{LF}_Y(Q) to the target of this map, such that WYLF(Q(q))W^{LF}_Y(Q(q)) is a holomorphic family of Laurent series near q=0q=0 and

WXLF(q)=WYLF(Q(q)).W^{LF}_{\mathcal{X}}(q)=W^{LF}_Y(Q(q)).

This is an open-string version of the crepant resolution conjecture, predicting equality of the generating functions of open Gromov–Witten invariants for a Gorenstein toric orbifold and its toric crepant resolution after analytic continuation and a change of variables.

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Primary source

Kwokwai Chan, Cheol-Hyun Cho, Siu-Cheong Lau and Hsian-Hua Tseng, “Lagrangian Floer superpotentials and crepant resolutions for toric orbifolds”, arXiv:1208.5282 (2014).

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