English

The Katz-Klemm-Vafa conjecture for K3 surfaces

Algebraic Geometry 2017-05-24 v3 High Energy Physics - Theory Symplectic Geometry

Abstract

We prove the KKV conjecture expressing Gromov-Witten invariants of K3 surfaces in terms of modular forms. Our results apply in every genus and for every curve class. The proof uses the Gromov-Witten/Pairs correspondence for K3-fibered hypersurfaces of dimension 3 to reduce the KKV conjecture to statements about stable pairs on (thickenings of) K3 surfaces. Using degeneration arguments and new multiple cover results for stable pairs, we reduce the KKV conjecture further to the known primitive cases. Our results yield a new proof of the full Yau-Zaslow formula, establish new Gromov-Witten multiple cover formulas, and express the fiberwise Gromov-Witten partition functions of K3-fibered 3-folds in terms of explicit modular forms.

Keywords

Cite

@article{arxiv.1404.6698,
  title  = {The Katz-Klemm-Vafa conjecture for K3 surfaces},
  author = {R. Pandharipande and R. P. Thomas},
  journal= {arXiv preprint arXiv:1404.6698},
  year   = {2017}
}

Comments

Fixed 3 typos

R2 v1 2026-06-22T03:59:27.698Z