English

Punctures and p-spin curves from matrix models II

High Energy Physics - Theory 2021-06-02 v1 Mathematical Physics math.MP

Abstract

We report here an extension of a previous work in which we have shown that matrix models provide a tool to compute the intersection numbers of p-spin curves. We discuss further an extension to half-integer p, and in more details for p=1/2 and p=3/2. In those new cases one finds contributions from the Ramond sector, which were not present for positive integer p.The existence of Virasoro constraints, in particular a string equation, is considered also for half-integral spins. The contribution of the boundary of a Riemann surface, is investigated through a logarithmic matrix model The supersymmetric random matrices provide extensions to mixed positive and negative p punctures.

Keywords

Cite

@article{arxiv.2010.01444,
  title  = {Punctures and p-spin curves from matrix models II},
  author = {S. Hikami and E. Brezin},
  journal= {arXiv preprint arXiv:2010.01444},
  year   = {2021}
}

Comments

27 pages

R2 v1 2026-06-23T19:00:17.916Z