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A new spin on polynomial relations among kappa classes

Algebraic Geometry 2025-09-03 v2 High Energy Physics - Theory Mathematical Physics math.MP

Abstract

We prove a recent conjecture of the fourth named author with P. Norbury that states a system of universal polynomial relations among the kappa classes on the moduli spaces of algebraic curves. The proof involves localization and materialization analysis of the spin Gromov-Witten theory of the projective line and is dictated by Z2\mathbb{Z}_2-equivariant topological recursion.

Keywords

Cite

@article{arxiv.2508.17865,
  title  = {A new spin on polynomial relations among kappa classes},
  author = {Alexander Alexandrov and Boris Bychkov and Petr Dunin-Barkowski and Maxim Kazarian and Sergey Shadrin},
  journal= {arXiv preprint arXiv:2508.17865},
  year   = {2025}
}

Comments

19 pages; several corrections and clarifications

R2 v1 2026-07-01T05:04:21.409Z