Results 31 to 40 of about 59,702,858 (214)

Solving nonlinear PDEs using the higher order Haar wavelet method on nonuniform and adaptive grids

open access: yesMathematical Modelling and Analysis, 2021
The higher order Haar wavelet method (HOHWM) is used with a nonuniform grid to solve nonlinear partial differential equations numerically. The Burgers’ equation, the Korteweg–de Vries equation, the modified Korteweg–de Vries equation and the sine–Gordon ...
Mart Ratas, Andrus Salupere, Jüri Majak
doaj   +1 more source

On tau functions associated with linear systems [PDF]

open access: yes, 2012
\noindent {\bf Abstract} This paper considers the Fredholm determinant $\det (I-\Gamma_x)$ of a Hankel integral operator on $L^2(0, \infty )$ with kernel $\phi (s+t+2x)$, where $\phi$ is a matrix scattering function.
Samantha L. Newsham   +3 more
core   +4 more sources

On Integration of the Loaded mKdV Equation in the Class of Rapidly Decreasing Functions

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2021
The paper is devoted to the integration of the loaded modified Kortewegde Vries equation in the class of rapidly decreasing functions. It is well known that loaded differential equations in the literature are usually called equations containing in the ...
A.B. Khasanov, U. A. Hoitmetov
doaj   +1 more source

The Construction and Research of the Modified “Upwind Leapfrog” Difference Scheme with Improved Dispersion Properties for the Korteweg–de Vries Equation

open access: yesMathematics, 2022
This paper covers the construction and research of a scheme to solve the problem with nonlinear dispersion wave equations, described by the model Korteweg–de Vries equation.
Alexander Sukhinov   +4 more
doaj   +1 more source

Soliton interaction with external forcing within the Korteweg–de Vries equation [PDF]

open access: yes, 2019
We revise the solutions of the forced Korteweg–de Vries equation describing a resonant interaction of a solitary wave with external pulse-type perturbations.
Yury Stepanyants   +3 more
core   +1 more source

Higher-order Korteweg-de Vries models for internal solitary waves in a stratified shear flow with a free surface [PDF]

open access: yesNonlinear Processes in Geophysics, 2002
A higher-order extension of the familiar Korteweg-de Vries equation is derived for internal solitary waves in a density- and current-stratified shear flow with a free surface. All coefficients of this extended Korteweg-de Vries equation are expressed
R. Grimshaw   +2 more
doaj  

Traveling wave solutions of the generalized scale-invariant analog of the KdV equation by tanh–coth method

open access: yesNonlinear Engineering, 2023
In this work, the generalized scale-invariant analog of the Korteweg–de Vries equation is studied. For the first time, the tanh–coth methodology is used to find traveling wave solutions for this nonlinear equation.
González-Gaxiola Oswaldo   +1 more
doaj   +1 more source

On a Schwarzian PDE associated with the KdV hierarchy [PDF]

open access: yes, 2000
We present a novel integrable non-autonomous partial differential equation of the Schwarzian type, i.e. invariant under M\"obius transformations, that is related to the Korteweg-de Vries hierarchy.
Hone, A. N. W.   +8 more
core   +1 more source

Asymptotic stability of a Korteweg–de Vries equation with a two-dimensional center manifold

open access: yesAdvances in Nonlinear Analysis, 2018
Local asymptotic stability analysis is conducted for an initial-boundary-value problem of a Korteweg–de Vries equation posed on a finite interval [0,2⁢π⁢7/3]{[0,2\pi\sqrt{7/3}]}.
Tang Shuxia   +3 more
doaj   +1 more source

On the discrete and continuous Miura chain associated with the sixth Painlev equation [PDF]

open access: yes, 2000
A Miura chain is a (closed) sequence of differential (or difference) equations that are related by Miura or B\"acklund transformations. We describe such a chain for the sixth Painlev\'e equation (\pvi), containing, apart from \pvi itself, a Schwarzian ...
Hone, A. N. W.   +8 more
core   +1 more source

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