English

Topological recursion relations from Pixton's formula

Algebraic Geometry 2023-10-24 v2

Abstract

We prove that every degree-g polynomial in the ψ\psi-classes on Mg,n\overline{\mathcal M}_{g, n} can be expressed as a sum of tautological classes supported on the boundary with no κ\kappa-classes. Such equations, which we refer to as topological recursion relations, can be used to deduce universal equations for the Gromov-Witten invariants of any target.

Keywords

Cite

@article{arxiv.1704.02011,
  title  = {Topological recursion relations from Pixton's formula},
  author = {Emily Clader and Felix Janda and Xin Wang and Dmitry Zakharov},
  journal= {arXiv preprint arXiv:1704.02011},
  year   = {2023}
}

Comments

v2: agrees with published version; 17 pages

R2 v1 2026-06-22T19:10:12.189Z