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The Eynard-Orantin topological recursion relies on the geometry of a Riemann surface S and two meromorphic functions x and y on S. To formulate the recursion, one must assume that x has only simple ramification points. In this paper we…

Mathematical Physics · Physics 2014-08-12 Vincent Bouchard , Joel Hutchinson , Prachi Loliencar , Michael Meiers , Matthew Rupert

We prove that the topological recursion formalism can be used to quantize any generic classical spectral curve with smooth ramification points and simply ramified away from poles. For this purpose, we build both the associated quantum…

Mathematical Physics · Physics 2024-03-26 Bertrand Eynard , Elba Garcia-Failde , Olivier Marchal , Nicolas Orantin

For a given spectral curve, we construct a family of symplectic dual spectral curves for which we prove an explicit formula expressing the $n$-point functions produced by the topological recursion on these curves via the $n$-point functions…

Mathematical Physics · Physics 2025-01-22 Alexander Alexandrov , Boris Bychkov , Petr Dunin-Barkowski , Maxim Kazarian , Sergey Shadrin

When does topological recursion applied to a family of spectral curves commute with taking limits? This problem is subtle, especially when the ramification structure of the spectral curve changes at the limit point. We provide sufficient…

Algebraic Geometry · Mathematics 2026-02-24 Gaëtan Borot , Vincent Bouchard , Nitin Kumar Chidambaram , Reinier Kramer , Sergey Shadrin

We introduce the notion of log-Riemann surfaces. These are Riemann surfaces given by cutting and pasting planes together isometrically, and come equipped with a holomorphic local diffeomorphism to C called the projection map, and a…

Complex Variables · Mathematics 2015-12-14 Kingshook Biswas , Ricardo Perez-Marco

Ordinary maps satisfy topological recursion for a certain spectral curve $(x, y)$. We solve a conjecture from arXiv:1710.07851 that claims that fully simple maps, which are maps with non self-intersecting disjoint boundaries, satisfy…

Combinatorics · Mathematics 2024-09-30 Gaëtan Borot , Séverin Charbonnier , Elba Garcia-Failde

We prove a recent conjecture of Borot et al. that a particular universal closed algebraic formula recovers the correlation differentials of topological recursion after the swap of $x$ and $y$ in the input data. We also show that this…

Mathematical Physics · Physics 2025-05-28 Alexander Alexandrov , Boris Bychkov , Petr Dunin-Barkowski , Maxim Kazarian , Sergey Shadrin

We prove a simultaneous generalization of the classical Riemann-Hurwitz and Plucker formulas, addressing the total inflection of a morphism from a (smooth, projective) curve to an arbitrary (smooth, projective) higher-dimensional variety.…

Algebraic Geometry · Mathematics 2019-08-07 Brian Osserman , Adrian Zahariuc

Given a spectral curve with exponential singularities (which we call a "transalgebraic spectral curve"), we extend the definition of topological recursion to include contributions from the exponential singularities in a way that is…

Mathematical Physics · Physics 2025-09-03 Vincent Bouchard , Reinier Kramer , Quinten Weller

We introduce the notion of $\mathcal{N}=1$ abstract super loop equations, and provide two equivalent ways of solving them. The first approach is a recursive formalism that can be thought of as a supersymmetric generalization of the…

Mathematical Physics · Physics 2021-12-07 Vincent Bouchard , Kento Osuga

Scattering amplitudes for colored theories have recently been formulated in a new way, in terms of curves on surfaces. In this note we describe a canonical set of functions we call surface functions, associated to all orders in the…

High Energy Physics - Theory · Physics 2026-04-08 Nima Arkani-Hamed , Hadleigh Frost , Giulio Salvatori

We prove that every degree-g polynomial in the $\psi$-classes on $\overline{\mathcal M}_{g, n}$ can be expressed as a sum of tautological classes supported on the boundary with no $\kappa$-classes. Such equations, which we refer to as…

Algebraic Geometry · Mathematics 2023-10-24 Emily Clader , Felix Janda , Xin Wang , Dmitry Zakharov

We present a topological recursion formula for calculating the intersection numbers defined on the moduli space of open Riemann surfaces. The spectral curve is $x = \frac{1}{2}y^2$, the same as spectral curve used to calculate intersection…

Mathematical Physics · Physics 2016-02-04 Brad Safnuk

Interpreting the number of ramified covering of a Riemann surface by Riemann surfaces as the relative Gromov-Witten invariants and applying a gluing formula, we derive a recursive formula for the number of ramified covering of a Riemann…

Algebraic Geometry · Mathematics 2009-10-31 An-Min Li , Guosong Zhao , Quan Zheng

We investigate a supersymmetric generalisation of topological recursion from two perspectives: algebraic and geometric. The algebraic side concerns a recursive structure encoded in modules of a super Virasoro algebra, and the geometric…

Mathematical Physics · Physics 2025-11-24 Nezhla Aghaei , Reinier Kramer , Nicolas Orantin , Kento Osuga

A geometric quantization using the topological recursion is established for the compactified cotangent bundle of a smooth projective curve of an arbitrary genus. In this quantization, the Hitchin spectral curve of a rank $2$ meromorphic…

Algebraic Geometry · Mathematics 2014-11-07 Olivia Dumitrescu , Motohico Mulase

We study the quasiclassical expansion associated with a complex curve. In a more specific context this is the 1/N expansion in U(N)-invariant matrix integrals. We compare two approaches, the CFT approach and the topological recursion, and…

High Energy Physics - Theory · Physics 2011-03-17 Ivan Kostov , Nicolas Orantin

The paper aims at giving an introduction to the notion of quantum curves. The main purpose is to describe the new discovery of the relation between the following two disparate subjects: one is the topological recursion, that has its origin…

Algebraic Geometry · Mathematics 2016-08-30 Olivia Dumitrescu , Motohico Mulase

We present an algorithm for the computation of the topological type of a real compact Riemann surface associated to an algebraic curve, i.e., its genus and the properties of the set of fixed points of the anti-holomorphic involution $\tau$,…

Algebraic Geometry · Mathematics 2012-04-24 C. Kalla , C. Klein

Given a nonconstant holomorphic map f: X -> Y between compact Riemann surfaces, one of the first objects we learn to construct is its ramification divisor R_f, which describes the locus at which f fails to be locally injective. The divisor…

Number Theory · Mathematics 2013-02-21 Xander Faber
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