Results 51 to 60 of about 23,327 (208)

Free Surface Waves in Electrohydrodynamics With a Prescribed Vorticity Distribution

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 7, Page 7068-7081, 15 May 2026.
ABSTRACT Traditionally, the study of free surface flows assumed irrotationality to simplify matters, and the results seemed to have great success, notably with the Korteweg‐de Vries(KdV) equation. In the past decade, there have been attempts to remove this seemingly strong condition and replace it with a global constant vorticity equivalent to a linear
M. J. Hunt, Denys Dutykh
wiley   +1 more source

Justification of the NLS Approximation for the KdV Equation Using the Miura Transformation

open access: yesAdvances in Mathematical Physics, 2011
It is the purpose of this paper to give a simple proof of the fact that solutions of the KdV equation can be approximated via solutions of the NLS equation.
Guido Schneider
doaj   +1 more source

Computing the Solutions of the Combined Korteweg-de Vries Equation by Turing Machines [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2010
In this paper, we study the computability of the initial value problem of the Combined KdV equation. It is shown that, for any integer s>2, the nonlinear solution operator which maps an initial condition data to the solution of the Combined KdV ...
Dianchen Lu, Qingyan Wang, Rui Zheng
doaj   +1 more source

The homogeneous balance method, Lax pair, Hirota transformation and a general fifth-order KdV equation

open access: yes, 2001
In this paper, some notes of the homogeneous balance (HB) method are discussed by a kind of general fifth-order KdV (fKdV) equation. Frist, the auto-B\"acklund transformation and lax represents of the higher-order KdV equation(a specific forms of fKdV ...
Fajiang, Zhang, Lei, Yang, Yinghai, Wang
core   +2 more sources

An Explicit Construction of Kaleidocycles by Elliptic Theta Functions

open access: yesStudies in Applied Mathematics, Volume 156, Issue 5, May 2026.
ABSTRACT We study a configuration space consisting of ordered points on the two‐dimensional sphere satisfying a system of quadratic constraints. We construct explicit periodic orbits in the configuration space using elliptic theta functions. The constructed orbits simultaneously satisfy semi‐discrete analogues of the modified KdV and sine‐Gordon ...
Shizuo Kaji   +2 more
wiley   +1 more source

Supremacy Rule of Law in the Service of a Depoliticised Democracy—Pondering the Nature of the EU's ‘Social Contract’

open access: yesEuropean Law Journal, Volume 32, Issue 1, Page 144-161, April 2026.
ABSTRACT Seeing the EU roughly as a political system designed to remove the most essential political decisions from democratic control, while in a large part abiding by legal frameworks, we could speak about an opposition between technocratic legalism and democracy.
Dimitry V. Kochenov   +1 more
wiley   +1 more source

Soliton solutions to the time-dependent coupled KdV–Burgers’ equation

open access: yesAdvances in Difference Equations, 2019
In this article, the authors apply the Lie symmetry approach and the modified (G′/G) $( G'/G )$-expansion method for seeking the solutions of time-dependent coupled KdV–Burgers equation.
Aisha Alqahtani, Vikas Kumar
doaj   +1 more source

The simplified Hirota’s method for studying three extended higher-order KdV-type equations

open access: yesJournal of Ocean Engineering and Science, 2016
In this work we study three extended higher-order KdV-type equations. The Lax-type equation, the Sawada–Kotera-type equation and the CDG-type equation are derived from the extended KdV equation.
Abdul-Majid Wazwaz
doaj   +1 more source

Variable depth KDV equations and generalizations to more nonlinear regimes [PDF]

open access: yes, 2008
We study here the water-waves problem for uneven bottoms in a highly nonlinear regime where the small amplitude assumption of the Korteweg-de Vries (KdV) equation is enforced.
Alvarez-Samaniego   +28 more
core   +4 more sources

KdV equation on riemann surfaces

open access: yesNuclear Physics B, 1989
Abstract We define a generalization of the KdV equation to Riemann surfaces, together with the corresponding hierarchy of equations and infinite set of charges in involution. We show that the second hamiltonian structure gives rise to a realization of the Krichever-Novikov algebra.
BONORA L., MATONE, MARCO
openaire   +2 more sources

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