Relative descendent GW/Pairs correspondence

Let XX be a nonsingular 33-fold with a nonsingular divisor DXD\subset X, let 0βH2(X,Z)0\ne\beta\in H_2(X,\mathbb Z)), and let μ\mu be a cohomology-weighted partition of β[D]\int_\beta[D]. For γiH(X,Q)\gamma_i\in H^*(X,\mathbb Q)), let τα11(γ1)τα1(γ)\overline{\tau_{\alpha_1-1}(\gamma_1)\cdots\tau_{\alpha_\ell-1}(\gamma_\ell)} be the relative descendent correspondence formed using the relative diagonal and the logarithmic tangent bundle TX[D]T_X[-D].

Relative descendent GW/Pairs correspondence. Under the variable change q=eiu-q=e^{iu},

(q)dβ/2ZP(X/D;q τα11(γ1)τα1(γ)  μ)β=(iu)dβ+(μ)μZGW(X/D;u τα11(γ1)τα1(γ)  μ)β.(-q)^{-d_\beta/2}\mathsf Z_{\mathsf P}\Big(X/D;q\ \Big|\tau_{\alpha_1-1}(\gamma_1)\cdots\tau_{\alpha_\ell-1}(\gamma_\ell)\ \Big|\ \mu\Big)_\beta =(-iu)^{d_\beta+\ell(\mu)-|\mu|}\mathsf Z'_{\mathsf{GW}}\Big(X/D;u\ \Big|\overline{\tau_{\alpha_1-1}(\gamma_1)\cdots\tau_{\alpha_\ell-1}(\gamma_\ell)}\ \Big|\ \mu\Big)_\beta.

The conjecture also includes rationality in qq of the stable-pairs descendent series, which makes the change of variables well-defined. No resolution status is supplied.

Sources & referencesView supporting material

Primary source

R. Pandharipande and A. Pixton, “Gromov-Witten/Pairs correspondence for the quintic 3-fold”, arXiv:1206.5490 (2016).

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