activity
20102026
most citedTopological expansion of beta-ensemble model and quantum algebraic geometry in the sectorwise approach

66 citations · 86 across the 13 of their papers we have counts for

collaborators

14 papers

math-ph2026

The WKB Riemann-Hilbert Problem for the Painlevé I System

Mohamad Alameddine, Olivier Marchal, Nikita Nikolaev +1

In this paper, we solve the direct monodromy problem for the Borel-summed -parameter solution of Painlevé~I. Using the auxiliary time equation, we first construct formal WKB wav…

math-ph2026

Explicit Hamiltonian structure of the Flaschka-Newell Painlevé II hierarchy via symmetry reduction of the Painlevé IV hierarchy

Olivier Marchal, Mohamad Alameddine, Sergej Laub

We study the Hamiltonian structure of the Flaschka-Newell Painlevé II hierarchy via symmetry reduction of the associated space of meromorphic connections. Building on the realizati…

math-ph2026

A symmetry reduction of the Painlevé IV hierarchy to the Flaschka-Newell Painlevé II hierarchy

Mohamad Alameddine, Olivier Marchal

We study the isomonodromic deformation problem associated with rank-two meromorphic connections on the Riemann sphere having one regular singularity and one irregular singularity o…

math-ph2026

Geometry of Logarithmic Topological Recursion: Dilaton Equations, Free Energies and Variational Formulas

Alexander Hock, Olivier Marchal, Nicolas Orantin

One of the most important applications of topological recursion concerns spectral curves for which the functions defining the spectral curve are allowed to have logarithmic…

math-ph2025

The Painlevé I hierarchy: Correspondence between the isomonodromic approach and the minimal models of the KP hierarchy

Mohamad Alameddine, Nathan Hayford, Olivier Marchal

Two approaches to the Painlevé I hierarchy are discussed: the isomonodromic construction based on meromorphic connections, and the minimal models construction based on a reduction…

math.DG2025

Resurgence of Tritronquées Solutions of the Deformed Painlevé I Equation

Mohamad Alameddine, Olivier Marchal, Nikita Nikolaev +1

We prove that the formal -power series solution of the deformed Painlevé I equation is resurgent, which means it is generically Borel summable and its Borel transform admits…