The Frobenius structure conjecture: weak Gromov–Witten version

Let (Y,D)(Y,D) be a Fano pair. Let B(Z)B(\mathbb{Z}) denote the integral tropical points, with corresponding generators ϑq\vartheta_q of QHlog0(Y,D)\operatorname{QH}_{\log}^0(Y,D), and let \langle\cdot\rangle be the multilinear point function defined from the logarithmic Gromov–Witten numbers.

Weak Gromov–Witten Frobenius structure conjecture. There exists a product * on QHlog0(Y,D)\operatorname{QH}_{\log}^0(Y,D) making it a commutative associative Q[NE(Y)]\mathbb{Q}[\operatorname{NE}(Y)]-algebra with identity ϑ[Y]\vartheta_{[Y]} such that

ϑq1,,ϑqs=ϑq1ϑqs\langle \vartheta_{q_1},\ldots,\vartheta_{q_s}\rangle=\langle\vartheta_{q_1}*\cdots*\vartheta_{q_s}\rangle

for all ss-tuples q1,,qsB(Z)q_1,\ldots,q_s\in B(\mathbb{Z}) with s1s\geq1.

This conjecture asserts that the logarithmic Gromov–Witten point functions of every Fano pair arise from a single associative commutative product. 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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