The toric transversality conjecture for Frobenius structure counts

Let (Y,D)(Y,D) be a Fano pair, let q1,,qsB(Z)q_1,\ldots,q_s\in B(\mathbb{Z}), and let Nβ(q1,,qs)N_{\beta}(q_1,\ldots,q_s) be the logarithmic Gromov–Witten number defined by integrating evs+1[pt]ψ~s+1s1\operatorname{ev}_{s+1}^*[\operatorname{pt}]\cdot\widetilde{\psi}_{s+1}^{s-1} over the relevant virtual fundamental class.

Toric transversality conjecture. In the definition of Nβ(q1,,qs)N_{\beta}(q_1,\ldots,q_s), all curves in M0,Δqlog(Y~,β)\mathcal{M}^{\log}_{0,\Delta_{\mathbf q}}(\widetilde{Y}^{\dagger},\beta) satisfying generic representatives of the conditions evs+1[pt]\operatorname{ev}_{s+1}^*[\operatorname{pt}] and ψ~s+1s1\widetilde{\psi}_{s+1}^{s-1} are torically transverse.

This is an additional expected property of the curves contributing to the Gromov–Witten counts in the weak Frobenius structure conjecture. The parser supplies no evidence that it has been resolved.

Sources & referencesView supporting material

Primary source

Travis Mandel, “Fano mirror periods from the Frobenius structure conjecture”, arXiv:1903.12014 (2019).

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