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Related papers: On the connection problem for Painlev\'e I

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We consider a connection problem of the first Painlev\'{e} equation ($\mathrm{P_I}$), trying to connect the local behavior (Laurent series) near poles and the asymptotic behavior as the variable $t$ tends to negative infinity for real…

Classical Analysis and ODEs · Mathematics 2023-01-20 Wen-Gao Long , Yu-Tian Li , Qing-hai Wang

Inspired by recent formul\ae\ of Dubrovin, Yang, and Zagier, we interpret the tau function enumerating stationary Gromov-Witten invariants of $\mathbb{P}^1$ as an isomonodromic tau function associated with a difference equation. As a…

Mathematical Physics · Physics 2021-04-06 Marco Bertola , Giulio Ruzza

In previous work, Bender and Komijani (2015 \textit{J. Phys. A: Math. Theor.} 48, 475202) studied the first Painlev\'e (PI) equation and showed that the sequence of initial conditions giving rise to separatrix solutions could be…

Exactly Solvable and Integrable Systems · Physics 2023-05-04 Wen-Gao Long , Yu-Tian Li

The article studies the Fifth Painlev\'e equation and of the nonlinear Stokes phenomenon at its irregular singularity at infinity from the point of view of confluence from the Sixth Painlev\'e equation. This approach is developped…

Classical Analysis and ODEs · Mathematics 2021-02-15 Martin Klimes

We formulate the generic $\tau$-function of the Painlev\'e II equation as a Fredholm determinant of an integrable (Its-Izergin-Korepin-Slavnov) operator. The $\tau$-function depends on the isomonodromic time $t$ and two Stokes' parameters,…

Mathematical Physics · Physics 2024-05-01 Harini Desiraju

There is an abundance of equations of Painlev\'e type besides the classical Painlev\'e equations. Classifications have been computed by the Japanese school. Here we consider Painlev\'e type equations induced by isomonodromic families of…

Classical Analysis and ODEs · Mathematics 2025-09-12 Marius van der Put , Jaap Top

The goal of this article is to prove that the determinantal formulas of the Painlev'e 2 system identify with the correlation functions computed from the topological recursion on their spectral curve for an arbitrary non-zero monodromy…

Mathematical Physics · Physics 2017-04-11 Kohei Iwaki , Olivier Marchal

For the fifth Painlev\'e transcendents an asymptotic representation by the Jacobi $\mathrm{sn}$-function is presented in cheese-like strips along generic directions near the point at infinity. Its elliptic main part may be understood to…

Classical Analysis and ODEs · Mathematics 2026-03-18 Shun Shimomura

We study a higher-order Painlev\'{e}-type equation, arising as a string equation of the $3^{rd}$ order reduction of the KP hierarchy. This equation appears at the multi-critical point of the $2$-matrix model with quartic interactions, and…

Mathematical Physics · Physics 2025-06-17 Nathan Hayford

We derive a new Hamiltonian formulation of Schlesinger equations in terms of the dynamical $r$-matrix structure. The corresponding symplectic form is shown to be the pullback, under the monodromy map, of a natural symplectic form on the…

Symplectic Geometry · Mathematics 2022-01-19 Marco Bertola , Dmitry Korotkin

All possible 1-parametric classical and transcendent degenerated solutions of the fourth Painleve equation with the corresponding connection formulae of the asymptotic parameters are described.

solv-int · Physics 2007-05-23 Andrei A. Kapaev

This article studies a confluence of a pair of regular singular points to an irregular one in a generic family of time-dependent Hamiltonian systems in dimension 2. This is a general setting for the understanding of the degeneration of the…

Classical Analysis and ODEs · Mathematics 2017-09-27 Martin Klimes

All Painlev\'e equations can be written as a time-dependent Hamiltonian system, and as such they admit a natural generalization to the case of several particles with an interaction of Calogero type (rational, trigonometric or elliptic).…

Mathematical Physics · Physics 2019-02-20 Marco Bertola , Mattia Cafasso , Vladimir Roubtsov

Gamayun, Iorgov and Lisovyy in 2012 proposed that tau function of the Painlev\'e equation is equal to the series of $c=1$ Virasoro conformal blocks. We study similar series of $c=-2$ conformal blocks and relate it to Painlev\'e theory. The…

Mathematical Physics · Physics 2021-03-08 M. Bershtein , A. Shchechkin

In this paper we obtain explicit expressions for tau-functions related to Picard type solutions of the Painlev\'e VI equation in terms of theta functions and their derivatives.

Classical Analysis and ODEs · Mathematics 2010-02-12 Vladimir V. Mangazeev

We study the full asymptotic expansion of the monodromy data ({\it i.e.}, Stokes multipliers) for the first Painlev\'{e} transcendent (PI) with large initial data or large pole parameters. Our primary approach involves refining the complex…

Exactly Solvable and Integrable Systems · Physics 2025-01-23 Wen-Gao Long , Yun-Jiang Jiang , Yu-Tian Li

We examine quantum extensions of the continuous Painlev\'e equations, expressed as systems of first-order differential equations for non-commuting objects. We focus on the Painlev\'e equations II, IV and V. From their auto-B\"acklund…

Quantum Algebra · Mathematics 2010-12-17 Hajime Nagoya , Basil Grammaticos , Alfred Ramani

In this paper we study strong coupling asymptotic expansions of ${\mathcal N}=2$ $D=4$ $SU(2)$ gauge theory partition functions in general $\Omega$-background. This is done by refining Painlev\'e/gauge theory correspondence in terms of…

High Energy Physics - Theory · Physics 2025-02-04 G. Bonelli , A. Shchechkin , A. Tanzini

In Part I (arXiv:1209.2045) we computed the Stokes data, though not the "connection matrix", for the smooth solutions of the tt*-Toda equations whose existence we established by p.d.e. methods. Here we give an alternative proof of the…

Differential Geometry · Mathematics 2013-12-18 Martin A. Guest , Alexander R. Its , Chang-Shou Lin

We derive a formula for the connected $n$-point functions of a tau-function of the BKP hierarchy in terms of its affine coordinates. This is a BKP-analogue of a formula for KP tau-functions proved by Zhou in [arXiv:1507.01679]. Moreover, we…

Exactly Solvable and Integrable Systems · Physics 2022-07-06 Zhiyuan Wang , Chenglang Yang