English

On bulk singularities in the random normal matrix model

Mathematical Physics 2016-08-31 v2 Complex Variables math.MP Probability

Abstract

We extend the method of rescaled Ward identities of Ameur-Kang-Makarov to study the distribution of eigenvalues close to a bulk singularity, i.e. a point in the interior of the droplet where the density of the classical equilibrium measure vanishes. We prove results to the effect that a certain "dominant part" of the Taylor expansion determines the microscopic properties near a bulk singularity. A description of the distribution is given in terms of a special entire function, which depends on the nature of the singularity (a Mittag-Leffler function in the case of a rotationally symmetric singularity).

Keywords

Cite

@article{arxiv.1603.06761,
  title  = {On bulk singularities in the random normal matrix model},
  author = {Yacin Ameur and Seong-Mi Seo},
  journal= {arXiv preprint arXiv:1603.06761},
  year   = {2016}
}

Comments

This version clarifies on the proof of Theorem 4

R2 v1 2026-06-22T13:16:01.649Z