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Riemann-Hilbert problem for Hurwitz Frobenius manifolds: regular singularities [PDF]

open access: greenLetters in Mathematical Physics, 2013
In this paper we study the Fuchsian Riemann-Hilbert (inverse monodromy) problem corresponding to Frobenius structures on Hurwitz spaces. We find a solution to this Riemann-Hilbert problem in terms of integrals of certain meromorphic differentials over a ...
A. Kitaev   +19 more
core   +4 more sources

The Riemann–Hilbert Problem for Holonomic Systems

open access: bronzePublications of the Research Institute for Mathematical Sciences, 1984
Let X be a paracompact complex manifold of dimension n, \(X_{{\mathbb{R}}}\) the underlying real analytic manifold and \(\bar X\) the complex conjugate of X. Let \({\mathcal D}_ X\) and \({\mathcal O}_ X\) be the sheaf of differential operators and holomorphic functions. The ring \({\mathcal A}_{X_{{\mathbb{R}}}}\) and \({\mathcal D}_{X_{{\mathbb{R}}}}\
Masaki Kashiwara
semanticscholar   +5 more sources

The tacnode Riemann-Hilbert problem [PDF]

open access: yesConstructive Approximation, 2013
The tacnode Riemann-Hilbert problem is a 4 x 4 matrix valued RH problem that appears in the description of the local behavior of two touching groups of non-intersecting Brownian motions. The same RH problem was also found by Duits and Geudens to describe
Kuijlaars, Arno
core   +3 more sources

A Method of the Riemann–Hilbert Problem for Zhang’s Conjecture 2 in a Ferromagnetic 3D Ising Model: Topological Phases

open access: yesMathematics, 2021
A method of the Riemann–Hilbert problem is employed for Zhang’s conjecture 2 proposed in Philo. Mag. 87 (2007) 5309 for a ferromagnetic three-dimensional (3D) Ising model in a zero external magnetic field.
Zhidong Zhang, Osamu Suzuki
doaj   +2 more sources

The Soliton Solutions for Nonlocal Multi-Component Higher-Order Gerdjikov–Ivanov Equation via Riemann–Hilbert Problem

open access: yesFractal and Fractional
The Lax pairs of the higher-order Gerdjikov–Ivanov (HOGI) equation are extended to the multi-component formula. Then, we first derive four different types of nonlocal group reductions to this new system.
Jinshan Liu   +3 more
doaj   +2 more sources

The Riemann–Hilbert problem for nonsymmetric systems [PDF]

open access: greenJournal of Mathematical Physics, 1991
A comparison of the Riemann–Hilbert problem and the Wiener–Hopf factorization problem arising in the solution of half-space singular integral equations is presented. Emphasis is on the factorization of functions lacking the reflection symmetry usual in transport theory.
William Greenberg   +2 more
openalex   +5 more sources

A Riemann–Hilbert problem for uncoupled BPS structures [PDF]

open access: hybridManuscripta mathematica, 2019
We study the Riemann–Hilbert problem attached to an uncoupled BPS structure proposed by Bridgeland in (“Riemann–Hilbert problems from Donaldson–Thomas theory I”).
Anna Barbieri
openalex   +3 more sources

Bäcklund-Darboux Transformation for Non-Isospectral Canonical System and Riemann-Hilbert Problem

open access: greenSymmetry, Integrability and Geometry: Methods and Applications, 2007
A GBDT version of the Bäcklund-Darboux transformation is constructed for a non-isospectral canonical system, which plays essential role in the theory of random matrix models. The corresponding Riemann-Hilbert problem is treated and some explicit formulas
Alexander Sakhnovich
doaj   +2 more sources

Riemann-Hilbert problem, integrability and reductions [PDF]

open access: yesJournal of Geometric Mechanics, 2019
The present paper is dedicated to integrable models with Mikhailov reduction groups \begin{document}$G_R \simeq \mathbb{D}_h.$\end{document} Their Lax representation allows us to prove, that their solution is equivalent to solving Riemann-Hilbert ...
V. Gerdjikov, R. Ivanov, A. Stefanov
semanticscholar   +7 more sources

SOLVABILITY HOMOGENEOUS RIEMANN-HILBERT BOUNDARY VALUE PROBLEM WITH SEVERAL POINTS OF TURBULENCE

open access: diamondПроблемы анализа, 2018
We consider the so called Hilbert boundary value problem with infinite index in the unit disk. Its coefficient is assumed to be H¨older-continuous everywhere on the unit circle excluding a finite set of points.
Fatykhov A . Kh ., Shabalin P . L .
doaj   +2 more sources

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