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Universal Correlators on Exponentially Ramified Spectral Curves

Mathematical Physics 2026-07-20 v1 High Energy Physics - Theory Algebraic Geometry Complex Variables

Abstract

We investigate generalized topological recursion on compact spectral curves admitting exponential, and more generally essential, singularities as ramification points. Exploiting the global formulation of generalized topological recursion, we establish a contour deformation of the recursive residue formula that replaces contributions from these essential singularities by residues at meromorphic points. This provides a natural recursive framework for exponentially ramified spectral curves while remaining entirely within the generalized topological recursion formalism. Our formalism can also be viewed as a limiting case of the Bouchard-Eynard higher-order topological recursion, obtained when the order of a ramification point tends to infinity in a convergent manner, as occurs, for example, for exponential singularities while dydy remains regular and non-vanishing. We further illustrate the resulting formalism through several examples, including transcendental functions and the xx-yy dual of the Mirzakhani curve.

Keywords

Cite

@article{arxiv.2607.17711,
  title  = {Universal Correlators on Exponentially Ramified Spectral Curves},
  author = {Mohamad Alameddine and Alexander Hock},
  journal= {arXiv preprint arXiv:2607.17711},
  year   = {2026}
}

Comments

29 pages + reference