Holomorphic anomaly equations for the Hilbert scheme of points of a K3 surface
arXiv:2202.03361 · doi:10.2140/gt.2024.28.3779
Abstract
We conjecture that the generating series of Gromov-Witten invariants of the Hilbert schemes of points on a K3 surface are quasi-Jacobi forms and satisfy a holomorphic anomaly equation. We prove the conjecture in genus and for at most markings - for all Hilbert schemes and for arbitrary curve classes. In particular, for fixed , the reduced quantum cohomologies of all hyperkähler varieties of -type are determined up to finitely many coefficients. As an application we show that the generating series of -point Gromov-Witten classes are vector-valued Jacobi forms of weight , and that the fiberwise Donaldson-Thomas partition functions of an order two CHL Calabi-Yau threefold are Jacobi forms.
78 pages, 1 table