Results 11 to 20 of about 1,328,295 (326)

Freak waves in laboratory and space plasmas [PDF]

open access: yes, 2010
Generation of large-amplitude short-lived wave groups from small-amplitude initial perturbations in plasmas is discussed. Two particular wave modes existing in plasmas are considered. The first one is the ion-sound wave.
Ruderman, M.S.
core   +1 more source

On traveling wave solutions of a class of KdV-Burgers-Kuramoto type equations

open access: yesAIMS Mathematics, 2019
In the paper, the traveling wave solutions of a KdV–Burgers-Kuramoto type equation with arbitrary power nonlinearity are considered. Lie symmetry analysis method on the equation is performed, which shows that the equation possesses traveling wave ...
Yanxia Hu, Qian Liu
doaj   +1 more source

Comparative Study on Numerical Simulation of Wave-Current Nonlinear Interaction Based on Improved Mass Source Function

open access: yesJournal of Marine Science and Engineering, 2023
In coastal waters, wave propagation is often affected by rivers and tides. The wave current interaction increases the complexity of the wave propagation.
Haitao Li   +3 more
doaj   +1 more source

A pseudodifferential equation with damping for one-way wave propagation in inhomogeneous acoustic media [PDF]

open access: yes, 2003
A one-way wave equation is an evolution equation in one of the space directions that describes (approximately) a wave field. The exact wave field is approximated in a high frequency, microlocal sense.
Stolk, Christiaan C.
core   +5 more sources

Periodic solutions for a class of nonlinear partial differential equations in higher dimension [PDF]

open access: yes, 2008
We prove the existence of periodic solutions in a class of nonlinear partial differential equations, including the nonlinear Schroedinger equation, the nonlinear wave equation, and the nonlinear beam equation, in higher dimension. Our result covers cases
A. Soffer   +31 more
core   +2 more sources

An improved wave equation of fractured-porous media for predicting reservoir permeability

open access: yesFrontiers in Earth Science, 2023
The wave characteristics of fractured-porous media can be utilized for permeability identification; however, further research is necessary to enhance the accuracy of this identification. A novel wave equation for fractured-porous media is formulated, and
Wanjin Zhao   +3 more
doaj   +1 more source

Axial perturbations of general spherically symmetric spacetimes [PDF]

open access: yes, 2001
The aim of this paper is to present a governing equation for first order axial metric perturbations of general, not necessarily static, spherically symmetric spacetimes.
Carter B   +11 more
core   +4 more sources

On the Stability of Wave Equation [PDF]

open access: yesAbstract and Applied Analysis, 2013
We prove the generalized Hyers-Ulam stability of the wave equation,Δu=(1/c2)utt, in a class of twice continuously differentiable functions under some conditions.
openaire   +4 more sources

One-Way Wave Equation Derived from Impedance Theorem

open access: yesAcoustics, 2020
The wave equations for longitudinal and transverse waves being used in seismic calculations are based on the classical force/moment balance. Mathematically, these equations are 2nd order partial differential equations (PDE) and contain two solutions with
Oskar Bschorr, Hans-Joachim Raida
doaj   +1 more source

How to obtain a covariant Breit type equation from relativistic Constraint Theory [PDF]

open access: yes, 1994
It is shown that, by an appropriate modification of the structure of the interaction potential, the Breit equation can be incorporated into a set of two compatible manifestly covariant wave equations, derived from the general rules of Constraint Theory ...
Berestetskii V B   +20 more
core   +4 more sources

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