Results 71 to 80 of about 5,295 (178)

Bright and Dark Breathers on an Elliptic Wave in the Defocusing mKdV Equation

open access: yesStudies in Applied Mathematics, Volume 156, Issue 1, January 2026.
ABSTRACT Breathers on an elliptic wave background consist of nonlinear superpositions of a soliton and a periodic wave, both traveling with different wave speeds and interacting periodically in the space‐time. For the defocusing modified Korteweg–de Vries equation, the construction of general breathers has been an open problem since the elliptic wave ...
Dmitry E. Pelinovsky, Rudi Weikard
wiley   +1 more source

A theorem concerning Fourier transforms: A survey

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract In this note, we highlight the impact of the paper G. H. Hardy, A theorem concerning Fourier transforms, J. Lond. Math. Soc. (1) 8 (1933), 227–231 in the community of harmonic analysis in the last 90 years, reviewing, on one hand, the direct generalizations of the main results and, on the other hand, the different connections to related areas ...
Aingeru Fernández‐Bertolin, Luis Vega
wiley   +1 more source

Kudryashov Expansion Method Applied to Fisher Mathematical Model

open access: yesAdvances in Mathematical Physics, Volume 2026, Issue 1, 2026.
We obtain new computational soliton solutions characterized by topological, rational, exponential, trigonometric, and hyperbolic functions for the Fisher equation. Using a good strategy, the Kudryashov expansion method is used to find different dynamical wave structures of soliton solutions within the scope of evolutionary dynamical structures of ...
Elif Deniz Öztürk   +3 more
wiley   +1 more source

Oscillatory Solutions for Lattice Korteweg-de Vries-Type Equations

open access: yes, 2017
By imposing some shift relations on r which satisfies the Sylvester equation KM + MK = r t
Wei Feng, Song-Lin Zhao
core   +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  

Generalized Korteweg–de Vries equation for internal waves in two-layer fluid

open access: yes, 2014
The derivation of the fifth-order Korteweg—de Vries equation is presented for internal waves in two-layer fluid with surface tension on the interface between the layers.
Kurkin, A. A.   +3 more
core  

On the Controllability of the Fifth-Order Korteweg-De Vries Equation

open access: yes, 2009
In this paper, we consider the fifth-order Korteweg-de Vries equation in a bounded interval. We prove that this equation is locally well-posed when endowed with suitable boundary conditions, and establish a result of local controllability to the ...
Guerrero, Sergio   +5 more
core   +1 more source

Global well-posedness for the transitional Korteweg-de Vries equation

open access: yes, 1998
We study the global well-posedness for the transitional Korteweg-de Vries equation in Sobolev spaces Hs(R), s ...
Nunes, W.V.L.
core   +1 more source

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