The higher-genus log-open correspondence for nef Looijenga pairs

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Let (X,D)(X,D) be a nef Looijenga pair admitting a deformation to a pair (X,D)(X',D') with XX' toric, DiD'_i prime toric divisors for i<li<l, and DlD'_l nef. Let (Y,L)(Y,L) be the corresponding Aganagic–Vafa pair, let Ndlog\mathbb{N}_{d}^{\rm \log} and Oι(d)\mathbb{O}_{\iota(d)} denote the all-genus generating functions for the log and open invariants, and set q=eiq=e^{\mathrm{i}\hbar}. The higher-genus log-open correspondence.

Ndlog(X,D1++Dl)=(i<l(1)dDi+1dDi)(1)dDl+1[dDl]qOι(d)(Y,L1[f1]Ll1[fl1]),\mathbb{N}_{d}^{\rm \log}(X,D_1 +\dots + D_l) = \left(\prod_{i<l} (-1)^{d \cdot D_i +1} d\cdot D_i\right) (-1)^{d\cdot D_l+1} [d \cdot D_l]_q \,\mathbb{O}_{\iota(d)}(Y,L_1^{[f_1]} \sqcup \dots \sqcup L_{l-1}^{[f_{l-1}]}),

where q=eiq=e^{\mathrm{i}\hbar}.

This conjecture refines the genus-zero log-open correspondence to all genera, replacing the final degree factor by its qq-deformation. The source presents it as a conjectural formula for nef Looijenga pairs; its general status is open.

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Sources & referencesView supporting material

Primary source

Andrea Brini, “Enumerative geometry of surfaces and topological strings”, arXiv:2211.11037 (2022).

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