Results 31 to 40 of about 3,281 (260)

Framed Curve Families Induced by Real and Complex Coupled Dispersionless-Type Equations

open access: yesMathematics, 2023
In this study, we investigate coupled real and complex dispersionless equations for curve families, even if they have singular points. Even though the connections with the differential equations and regular curves were considered in various ways in the ...
Nikola Popović   +3 more
doaj   +1 more source

Multi-Parametric Families of Solutions of Order $N$ to the Boussinesq and KP Equations and the Degenerate Rational Case

open access: yesUniversal Journal of Mathematics and Applications, 2020
From elementary exponential functions which depend on several parameters, we construct multi-parametric solutions to the Boussinesq equation. When we perform a passage to the limit when one of these para\-meters goes to $0$, we get rational solutions as ...
Pierre Gaillard
doaj   +1 more source

A Finite-Dimensional Integrable System Related to the Kadometsev–Petviashvili Equation

open access: yesMathematics, 2023
In this paper, the Kadometsev–Petviashvili equation and the Bargmann system are obtained from a second-order operator spectral problem Lφ=(∂2−v∂−λu)φ=λφx.
Wei Liu   +3 more
doaj   +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

Lax pairs for integrable lattice systems [PDF]

open access: yesJournal of Mathematical Physics, 1999
This paper studies the structure of Lax pairs associated with integrable lattice systems (where space is a one-dimensional lattice, and time is continuous). It describes a procedure for generating examples of such systems, and emphasizes the features that are needed to obtain equations which are local on the spatial lattice.
openaire   +2 more sources

NONLINEAR EQUATIONS WITH INTEGRATED OPERATOR STRUCTURES

open access: yesВестник Северо-Кавказского федерального университета, 2022
The article is devoted to the construction of nonlinear equations with partial derivatives possessing Lax operator structure. The presence of Lax pair is supposed to allow to integrate the obtained equations with the help of the inverse scattering ...
Valentina M. Karslieva
doaj  

On the Propagation Model of Two-Component Nonlinear Optical Waves

open access: yesAxioms, 2023
Currently, two-component integrable nonlinear equations from the hierarchies of the vector nonlinear Schrodinger equation and the vector derivative nonlinear Schrödinger equation are being actively investigated.
Aleksandr O. Smirnov, Eugeni A. Frolov
doaj   +1 more source

Lax Pair for a Novel Two-Dimensional Lattice [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2021
In paper by I.T. Habibullin and our joint paper the algorithm for classification of integrable equations with three independent variables was proposed. This method is based on the requirement of the existence of an infinite set of Darboux integrable reductions and on the notion of the characteristic Lie-Rinehart algebras. The method was applied for the
openaire   +4 more sources

Lax pair for strings in Lunin-Maldacena background [PDF]

open access: yesJournal of High Energy Physics, 2005
Recently Lunin and Maldacena used an SL(3,R) transformation of the AdS_5 x S^5 background to generate a supergravity solution dual to a so-called beta-deformation of N = 4 super Yang-Mills theory. We use a T-duality-shift-T-duality (TsT) transformation to obtain the beta-deformed background for real beta, and show that solutions of string theory ...
openaire   +4 more sources

A Completeness Study on Certain 2×2 Lax Pairs Including Zero Terms

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
We expand the completeness study instigated in [J. Math. Phys. 50 (2009), 103516, 29 pages] which found all 2×2 Lax pairs with non-zero, separable terms in each entry of each Lax matrix, along with the most general nonlinear systems that can be ...
Mike C. Hay
doaj   +1 more source

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