Results 71 to 80 of about 39,926 (178)

MKdV方程和SG方程的可积曲面的构造(Conformation of soliton surfaces of MKdV equation and SG equation)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2010
The soliton solutions and the soliton surfaces of Modified Korteweg-de Vries equation (MKdV) and Sine-Gordon (SG) equation by the n-fold Darboux transformation are given out.
ZHANGLing(张玲), DINGNan(丁楠)
doaj   +1 more source

Analytical Treatments for a Coupled (2+1)-Dimensional Partial Differential Equations in Nonlinear Physics

open access: yesAdvances in Mathematical Physics
The two-dimensional (2D) nonlinear coupled sine-Gordon equations play a significant role in nonlinear physics, describing phenomena in areas such as solid-state physics, fluid dynamics, and nonlinear optics.
Wubshet Ibrahim, Teresa Negesa
doaj   +1 more source

Exact Solutions of Coupled Sine-Gordon Equations Using the Simplest Equation Method

open access: yesJournal of Applied Mathematics, 2014
The simplest equation method has been used for finding the exact solutions of coupled sine-Gordon equations. Such equations have some useful applications in physics and biology, so finding their exact solutions is of great importance.
Yun-Mei Zhao
doaj   +1 more source

Elliptic string solutions on $$\mathbb {R}\times \hbox {S}^2$$ R×S2 and their pohlmeyer reduction

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
We study classical string solutions on $$\mathbb {R}\times \hbox {S}^2$$ R×S2 that correspond to elliptic solutions of the sine-Gordon equation. In this work, these solutions are systematically derived by inverting the Pohlmeyer reduction.
Dimitrios Katsinis   +2 more
doaj   +1 more source

Acoustic emission from a dislocation kink accelerated by an external force

open access: yesArchives of Acoustics, 2005
The emission of elastic waves from a dislocation kink accelerated by a constant external force is presented. The dynamics of the dislocation kink interacting with longitudinal acoustic waves is described by a sine-Gordon--d'Alembert system,
E. Douka, B. Polyzos, A. Trochidis
doaj  

Quantum simulation of expanding space–time with tunnel-coupled condensates

open access: yesNew Journal of Physics, 2015
We consider two weakly interacting quasi-1D condensates of cold bosonic atoms. It turns out that a time-dependent variation of the tunnel-coupling between those condensates is equivalent to the spatial expansion of a one-dimensional toy-Universe, with ...
Clemens Neuenhahn, Florian Marquardt
doaj   +1 more source

On the Complexiton Solutions to the Conformable Fractional Hirota–Satsuma–Ito Equation

open access: yesJournal of Mathematics
This study analyzes the Hirota–Satsuma–Ito equation, which discusses the propagation of unidirectional shallow-water waves and the interactions between two long waves with different dispersion forms.
Hajar F. Ismael   +5 more
doaj   +1 more source

On Transformations of the Rabelo Equations

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
We study four distinct second-order nonlinear equations of Rabelo which describe pseudospherical surfaces. By transforming these equations to the constant-characteristic form we relate them to some well-studied integrable equations.
Anton Sakovich, Sergei Sakovich
doaj  

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