Results 1 to 10 of about 1,801 (94)

The sixth Painleve equation arising from D_4^{(1)} hierarchy [PDF]

open access: yes, 2006
The sixth Painleve equation arises from a Drinfel'd-Sokolov hierarchy associated with the affine Lie algebra of type D_4 by similarity reduction.
Carter R   +10 more
arxiv   +3 more sources

The nonlinear Schr\"odinger equation with forcing involving products of eigenfunctions [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics, 2022
We elaborate on a new methodology, which starting with an integrable evolution equation in one spatial dimension, constructs an integrable forced version of this equation.
A. S. Fokas, A. Latifi
doaj   +1 more source

Hamiltonian structures for integrable hierarchies of Lagrangian PDEs [PDF]

open access: yesOpen Communications in Nonlinear Mathematical Physics, 2021
Many integrable hierarchies of differential equations allow a variational description, called a Lagrangian multiform or a pluri-Lagrangian structure. The fundamental object in this theory is not a Lagrange function but a differential $d$-form that is ...
Mats Vermeeren
doaj   +1 more source

Solitons for the coupled matrix nonlinear Schrödinger-type equations and the related Schrödinger flow

open access: yesOpen Mathematics, 2023
In this article, the coupled matrix nonlinear Schrödinger (NLS) type equations are gauge equivalent to the equation of Schrödinger flow from R1{{\mathbb{R}}}^{1} to complex Grassmannian manifold G˜n,k=GL(n,C)∕GL(k,C)×GL(n−k,C),{\widetilde{G}}_{n,k}={\rm ...
Zhong Shiping, Zhao Zehui, Wan Xinjie
doaj   +1 more source

Inverse spectral problem for Jacobi operators and Miura transformation

open access: yesConcrete Operators, 2021
We study a Miura-type transformation between Kac - van Moerbeke (Volterra) and Toda lattices in terms of the inverse spectral problem for Jacobi operators, which appear in the Lax representation for such systems.
Osipov Andrey
doaj   +1 more source

E8 spectral curves

open access: yesProceedings of the London Mathematical Society, Volume 121, Issue 4, Page 954-1032, October 2020., 2020
Abstract I provide an explicit construction of spectral curves for the affine E8 relativistic Toda chain. Their closed‐form expression is obtained by determining the full set of character relations in the representation ring of E8 for the exterior algebra of the adjoint representation; this is in turn employed to provide an explicit construction of ...
Andrea Brini
wiley   +1 more source

Complex Lagrangians in a hyperKähler manifold and the relative Albanese

open access: yesComplex Manifolds, 2020
Let M be the moduli space of complex Lagrangian submanifolds of a hyperKähler manifold X, and let ω̄ : 𝒜̂ → M be the relative Albanese over M. We prove that 𝒜̂ has a natural holomorphic symplectic structure.
Biswas Indranil   +2 more
doaj   +1 more source

Higher-Order Rogue Wave and Rational Soliton Solutions of Discrete Complex mKdV Equations

open access: yesEast Asian Journal on Applied Mathematics, 2018
The generalised perturbation (n, N − n)-fold Darboux transformation is used to derive new higher-order rogue wave and rational soliton solutions of the discrete complex mKdV equations.
Xiaoyong Wen
semanticscholar   +1 more source

The application of trigonal curve theory to the second-order Benjamin-Ono hierarchy

open access: yesAdvances in Differential Equations, 2014
By introducing two sets of Lenard recursion equations, the second-order Benjamin-Ono hierarchy is proposed. In view of the characteristic polynomial of Lax matrix, a trigonal curve of arithmetic genus m−1 is deduced.
G. He, Lin He
semanticscholar   +2 more sources

By Magri's Theorem, Self-Dual Gravity is Completely Integrable [PDF]

open access: yes, 2007
By Magri's theorem the bi-Hamiltonian structure of Plebanski's second heavenly equation proves that (anti)-self-dual gravity is a completely integrable system in four dimensions.Comment: This is a contribution to the Proc.
Nutku, Yavuz
core   +4 more sources

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