Results 1 to 10 of about 128 (35)

Stability of solitary-wave solutions of coupled NLS equations with power-type nonlinearities

Advances in Nonlinear Analysis, 2015
This paper proves existence and stability of solitary-wave solutions of a system of 2-coupled nonlinear Schrödinger equations with power-type nonlinearities arising in several models of modern physics. The existence of vector solitary-wave solutions (i.e.
Bhattarai Santosh
doaj   +4 more sources

Note on modulational instability of Boussinesq wavetrains [PDF]

International Journal of Mathematics and Mathematical Sciences, Volume 15, Issue 2, Page 397-398, 1992., 1992
It is demonstrated that modulational instability may occur in Boussinesq wavetrains for wavenumbers k2 > 1, in contrast to the result found by Shivamoggi and Debnath. Both Whitham′s averaged Lagrangian formulation and the technique of Benjamin and Feir are used.
S. Roy Choudhury
wiley   +4 more sources

Analytical behavior of weakly dispersive surface and internal waves in the ocean

Journal of Ocean Engineering and Science, 2022
The (2+1)-dimensional interaction of a Riemann wave propagating along the y-axis with a long wave along the x-axis is described by the space-time fractional Calogero-Degasperis (CD) and fractional potential Kadomstev-Petviashvili (PKP) equation.
Mohammad Asif Arefin, Md. Abu Saeed, M. Ali Akbar, M. Hafiz Uddin   +3 more
doaj   +1 more source

New dynamical soliton propagation of fractional type couple modified equal-width and Boussinesq equations

Alexandria Engineering Journal, 2022
The space–time fractional coupled modified equal-width equation and the coupled Boussinesq equation are a category of fractional partial differential equations, which might be crucial mathematical feathers in nonlinear optics, solid-state physics ...
M. Ayesha Khatun, Mohammad Asif Arefin, M. Zohurul Islam, M. Ali Akbar, M. Hafiz Uddin   +4 more
doaj   +1 more source

Investigation of adequate closed form travelling wave solution to the space-time fractional non-linear evolution equations

Journal of Ocean Engineering and Science, 2022
This work aims to construct exact solutions for the space-time fractional (2 + 1)- dimensional dispersive longwave (DLW) equation and approximate long water wave equation (ALW) utilizing the two-variable (G′/G,1/G)-expansion method and the modified ...
Mohammad Asif Arefin, M. Ayesha Khatun, M. Hafiz Uddin, Mustafa Inc   +3 more
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Utilizing the extended tanh-function technique to scrutinize fractional order nonlinear partial differential equations

Partial Differential Equations in Applied Mathematics, 2023
In a range of nonlinear fields, for example molecular biology, physics in plasma, quantum mechanics, elastic media, nonlinear optics, the surface of water waves, and others, many complicated nonlinear behaviors can be pronounced using nonlinear ...
U.H.M. Zaman, Mohammad Asif Arefin, M. Ali Akbar, M. Hafiz Uddin   +3 more
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A note on asymptotic helix and quantum mechanical structure

International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 48, Page 3031-3039, 2003., 2003
Using the formulation of a moving curve, we demonstrate that an asymptotic helix goes over to the linear time‐dependent Schrödinger equation as shown by Dmitriyev (2002).
Partha Guha
wiley   +1 more source

Mechanical analogy for the wave‐particle: helix on a vortex filament

Journal of Applied Mathematics, Volume 2, Issue 5, Page 241-263, 2002., 2002
The small amplitude‐to‐thread ratio helical configuration of a vortex filament in the ideal fluid behaves exactly as de Broglie wave. The complex‐valued algebra of quantum mechanics finds a simple mechanical interpretation in terms of differential geometry of the space curve.
Valery P. Dmitriyev
wiley   +1 more source

Three‐dimensional Korteweg‐de Vries equation and traveling wave solutions

International Journal of Mathematics and Mathematical Sciences, Volume 24, Issue 6, Page 379-384, 2000., 2000
The three‐dimensional power Korteweg‐de Vries equation [ut+unux+uxxx] x+uyy+uzz=0, is considered. Solitary wave solutions for any positive integer n and cnoidal wave solutions for n = 1 and n = 2 are obtained. The cnoidal wave solutions are shown to be represented as infinite sums of solitons by using Fourier series expansions and Poisson′s summation ...
Kenneth L. Jones
wiley   +1 more source

Diverse soliton wave profile assessment to the fractional order nonlinear Landau-Ginzburg-Higgs and coupled Boussinesq-Burger equations

Results in Physics
The space–time fractional Landau-Ginzburg-Higgs equation and coupled Boussinesq-Burger equation describe the behavior of nonlinear waves in the tropical and mid-latitude troposphere, exhibiting weak scattering, extended connections, arising from the ...
Anamika Podder, Mohammad Asif Arefin, Khaled A. Gepreel, M. Hafiz Uddin, M. Ali Akbar   +4 more
doaj   +1 more source