Stratum logarithmic GW/PT correspondence

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Let (Y∣∂Y)(Y\mid\partial Y) be a toric threefold pair, let β\beta be a curve class, let μ\bm\mu be a vector of partitions, and let [[![σ,ϑ,\upalpha][!]][[![\sigma,\vartheta,\upalpha][!]] be a stratum class, where σ\sigma is a cone, ϑ\vartheta is an equivariant cohomology class, and \upalpha\upalpha is an equivariant cohomology class on the corresponding evaluation stratum. Let dβd_\beta be the anti-canonical degree of β\beta, and write ℓ(μj)\ell(\mu_j) and ∣μj∣|\mu_j| for the length and size of the jjth partition. Stratum GW/PT correspondence. The series

ZPT ⁣(Y∣∂Y;q∣[ ⁣[σ,ϑ,\upalpha] ⁣]∣μ)β\mathsf{Z}_{\mathsf{PT}}\!\left(Y\mid\partial Y; q \mid [\![\sigma, \vartheta, \upalpha]\!]\mid \bm{\mu}\right)_\beta

is the Laurent expansion of a rational function in qq. Under −q=eiu-q=e^{iu},

(−iu)dβ+∑ℓ(μj)−∣μj∣ ZGW ⁣(Y∣∂Y;u∣[ ⁣[σ,ϑ,\upalpha] ⁣]∣μ)β=(−q)−dβ/2 ZPT ⁣(Y∣∂Y;q∣[ ⁣[σ,ϑ,\upalpha] ⁣]∣μ)β.(-iu)^{d_\beta+\sum \ell(\mu_j)-|\mu_j|}\,\mathsf{Z}_{\mathsf{GW}}\!\left(Y\mid\partial Y; u \mid [\![\sigma, \vartheta, \upalpha]\!]\mid \bm{\mu}\right)_\beta = (-q)^{-d_\beta/2}\,\mathsf{Z}_{\mathsf{PT}}\!\left(Y\mid\partial Y; q \mid [\![\sigma, \vartheta, \upalpha]\!]\mid \bm{\mu}\right)_\beta.

This extends the primary logarithmic GW/PT correspondence to stratum invariants, including the non-exotic and exotic classes introduced through subdivisions. The source presents this as a strata conjecture; no resolution status is supplied in the provided text.

References

Primary source

Davesh Maulik and Dhruv Ranganathan, “The GW/PT conjectures for toric pairs”, arXiv:2603.07772 (2026).

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