Results 21 to 30 of about 94,442 (230)

Noncommutative Monopoles and Riemann-Hilbert Problems [PDF]

open access: yesJournal of High Energy Physics, 2004
The Bogomolny equations for Yang-Mills-Higgs monopoles follow from a system of linear equations which may be solved through a parametric Riemann-Hilbert problem. We extend this approach to noncommutative R^3 and use it to (re)construct noncommutative Dirac, Wu-Yang, and BPS monopole configurations in a unified manner.
Lechtenfeld, Olaf, Popov, Alexander D.
openaire   +3 more sources

Riemann–Hilbert approach and N-soliton solution for an eighth-order nonlinear Schrödinger equation in an optical fiber

open access: yesAdvances in Difference Equations, 2019
This paper aims to present an application of the Riemann–Hilbert approach to treat higher-order nonlinear differential equation that is an eighth-order nonlinear Schrödinger equation arising in an optical fiber. Starting from the spectral analysis of the
Zhou-Zheng Kang   +2 more
doaj   +1 more source

Stable Flags and the Riemann-Hilbert Problem [PDF]

open access: yes, 2010
We tackle the Riemann-Hilbert problem on the Riemann sphere as stalk-wise logarithmic modifications of the classical R\"ohrl-Deligne vector bundle. We show that the solutions of the Riemann-Hilbert problem are in bijection with some families of local ...
André   +11 more
core   +1 more source

Strong asymptotics for Cauchy biorthogonal polynomials with application to the Cauchy two--matrix model [PDF]

open access: yes, 2012
We apply the nonlinear steepest descent method to a class of 3x3 Riemann-Hilbert problems introduced in connection with the Cauchy two-matrix random model.
Atiyah M. F.   +8 more
core   +2 more sources

B\"acklund Transformations of the Sixth Painlev\'e Equation in Terms of Riemann-Hilbert Correspondence [PDF]

open access: yes, 2003
It is well known that the sixth Painlev\'e equation $\PVI$ admits a group of B\"acklund transformations which is isomorphic to the affine Weyl group of type $\mathrm{D}_4^{(1)}$.
Inaba, Michi-aki   +2 more
core   +1 more source

Multiple-Pole Solutions to a Semidiscrete Modified Korteweg-de Vries Equation

open access: yesAdvances in Mathematical Physics, 2019
Multiple-pole soliton solutions to a semidiscrete modified Korteweg-de Vries equation are derived by virtue of the Riemann-Hilbert problem with higher-order zeros.
Zhixing Xiao, Kang Li, Junyi Zhu
doaj   +1 more source

Lax Equations, Singularities and Riemann–Hilbert Problems [PDF]

open access: yesMathematical Physics, Analysis and Geometry, 2012
The existence of singularities of the solution for a class of Lax equations is investigated using a development of the fac- torization method first proposed by Semenov-Tian-Shansky and Reymann [11], [9]. It is shown that the existence of a singularity at a point t = ti is directly related to the property that the ker- nel of a certain Toeplitz operator
dos Santos, António F.   +1 more
openaire   +3 more sources

A coupled complex mKdV equation and its N-soliton solutions via the Riemann–Hilbert approach

open access: yesBoundary Value Problems, 2023
This paper concerns the initial value problem of a coupled complex mKdV (CCMKDV) equations u t + u x x x + 6 ( | u | 2 + | v | 2 ) u x + 6 u ( | v | 2 ) x = 0 , v t + v x x x + 6 ( | u | 2 + | v | 2 ) v x + 6 v ( | u | 2 ) x = 0 , $$ \begin{aligned} &u_ ...
Siqi Xu
doaj   +1 more source

Riemann–Hilbert problem for the modified Landau–Lifshitz equation with nonzero boundary conditions [PDF]

open access: yesTheoretical and mathematical physics, 2019
We study a matrix Riemann–Hilbert (RH) problem for the modified Landau–Lifshitz (mLL) equation with nonzero boundary conditions at infinity. In contrast to the case of zero boundary conditions, multivalued functions arise during direct scattering.
Jin-Jie Yang, Shou‐Fu Tian
semanticscholar   +1 more source

The Riemann-Hilbert problem associated with the quantum Nonlinear Schrodinger equation [PDF]

open access: yes, 1997
We consider the dynamical correlation functions of the quantum Nonlinear Schrodinger equation. In a previous paper we found that the dynamical correlation functions can be described by the vacuum expectation value of an operator-valued Fredholm ...
Faddeev L D   +8 more
core   +3 more sources

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