Results 31 to 40 of about 25,165,823 (318)

Overview of the Kadomtsev–Petviashvili-hierarchy reduction method for solitons

open access: yesPartial Differential Equations in Applied Mathematics, 2022
The Kadomtsev–Petviashvili (KP) hierarchy reduction method is a prominent direct method for deriving explicit solutions to integrable equations. This method is based on Hirota’s bilinear formulation of integrable systems, as well as the observation that ...
Bo Yang, Jianke Yang
doaj   +1 more source

On an Integrable System of q-Difference Equations Satisfied by the Universal Characters: Its Lax Formalism and an Application to q-Painlevé Equations [PDF]

open access: yes, 2009
The universal character is a generalization of the Schur function attached to a pair of partitions. We study an integrable system of q-difference equations satisfied by the universal characters, which is an extension of the q-KP hierarchy and is called ...
Teruhisa Tsuda
semanticscholar   +1 more source

NORMALIZATION OF CLASSICAL HAMILTONIAN SYSTEMS WITH TWO DEGREES OF FREEDOM

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
The family of the Hamiltonian systems with two degrees of freedom was investigated. The calculations of the Poincaré sections show that with arbitrary values of the parameters of the Hamilton function, the system is non-integrable and dynamic chaos is ...
I.N. Belyaeva   +4 more
doaj   +1 more source

Deformation conjecture: deforming lower dimensional integrable systems to higher dimensional ones by using conservation laws

open access: yesJournal of High Energy Physics, 2023
Utilizing some conservation laws of (1+1)-dimensional integrable local evolution systems, it is conjectured that higher dimensional integrable equations may be regularly constructed by a deformation algorithm.
S. Y. Lou, Xia-zhi Hao, Man Jia
doaj   +1 more source

The two-component complex coupled integrable dispersionless equations: Darboux transformation and soliton solutions

open access: yesPartial Differential Equations in Applied Mathematics, 2022
The complex coupled integrable dispersionless (CID)system is an important system. It has been shown that complex CID equation is gauge equivalent to the Pohlmeyer–Lund–Regge model (a complex sine-Gordon equation) and can also be transformed to the ...
Caiqin Song, Chen-Chen Fu, Zuo-Nong Zhu
doaj   +1 more source

THE BOUSSINESQ INTEGRABLE SYSTEM: COMPATIBLE LATTICE AND CONTINUUM STRUCTURES [PDF]

open access: yesGlasgow Mathematical Journal, 2004
We consider the discrete Boussinesq integrable system and the compatible set of differential difference, and partial differential equations. The latter not only encode the complete hierarchy of the Boussinesq equation, but also incorporate the hyperbolic
A. Tongas, F. Nijhoff
semanticscholar   +1 more source

The classical limit of non-integrable quantum systems [PDF]

open access: yes, 2005
The classical limit of non-integrable quantum systems is studied. We define non-integrable quantum systems as those which have, as their classical limit, a non-integrable classical system.
Castagnino, Mario, Lombardi, Olimpia
core   +1 more source

On the complete integrability of an equation having solitons but not known to have a Lax pair

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
It is usually assumed that a system having N-soliton solutions is completely integrable. Here we have analyzed a set of equations occuring in case of capillary gravity waves.
A. Roychowdhury, G. Mahato
doaj   +1 more source

Spinning strings in AdS(5) x S**5: New integrable system relations [PDF]

open access: yes, 2003
A general class of rotating closed string solutions in AdS5 × S 5 is shown to be described by a Neumann-Rosochatius one-dimensional integrable system.
G. Arutyunov, J. Russo, A. Tseytlin
semanticscholar   +1 more source

A generalized isospectral–nonisospectral heat equation hierarchy and its expanding integrable model

open access: yesAdvances in Difference Equations, 2020
A generalized nonisospectral heat integrable hierarchy with three dependent variables is singled out. A Bäcklund transformation of a resulting isospectral integrable hierarchy is produced by converting the usual Lax pair into the Lax pairs in Riccati ...
Huanhuan Lu, Yufeng Zhang, Jianqin Mei
doaj   +1 more source

Home - About - Disclaimer - Privacy