Results 21 to 30 of about 106,166 (304)

Numerical solution of the two-dimensional Helmholtz equation with variable coefficients by the radial integration boundary integral and integro-differential equation methods [PDF]

open access: yes, 2012
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2012 Taylor & Francis.This paper presents new formulations of the boundary–domain integral equation (BDIE) and the boundary–domain integro-
Al-Jawary, MA, Wrobel, LC
core   +1 more source

Curvelets, Wave Atoms, and Wave Equations [PDF]

open access: yes, 2006
We argue that two specific wave packet families---curvelets and wave atoms---provide powerful tools for representing linear systems of hyperbolic differential equations with smooth, time-independent coefficients.
Demanet, Laurent
core   +1 more source

New solitary wave in shallow water, plasma and ion acoustic plasma via the GZK-BBM equation and the RLW equation

open access: yesPropulsion and Power Research, 2017
This work obtains the disguise version of exact solitary wave solutions of the generalized (2+1)-dimensional Zakharov-Kuznetsov–Benjamin-Bona-Mahony and the regularized long wave equation with some free parameters via modified simple equation method (MSE)
Harun-Or Roshid   +3 more
doaj   +1 more source

Evaluation of the performance of fractional evolution equations based on fractional operators and sensitivity assessment

open access: yesResults in Physics, 2023
In this article, the nonlinear fractional Kudryashov’s equation and the space–time fractional nonlinear Tzitzeica–Dodd–Bullough (TDB) equation are solved using the new auxiliary equation method, which yields innovative analytical solutions using β and M ...
Riaz Ur Rahman   +5 more
doaj   +1 more source

A Modified Equation Approach to Selecting a Nonstandard Finite Difference Scheme Applied to the Regularized Long Wave Equation

open access: yesAbstract and Applied Analysis, 2014
Two nonstandard finite difference schemes are derived to solve the regularized long wave equation. The criteria for choosing the “best” nonstandard approximation to the nonlinear term in the regularized long wave equation come from considering the ...
E. Momoniat
doaj   +1 more source

Spin-projected charge conductance in SNN junctions with noncentrosymmetric superconductors

open access: yesPhysical Review Research, 2023
A superconductor–normal-metal–normal-metal junction in which the superconducting potential is a mixture between s-wave and p-wave potentials is investigated using the Usadel equation equipped with Tanaka-Nazarov boundary conditions.
T. H. Kokkeler, Y. Tanaka, A. A. Golubov
doaj   +1 more source

Koopman Operator and Path Integral of Quantum Free-Electron Laser Model

open access: yesMathematics, 2022
A quantum model of a free-electron laser (FEL) is considered. Two different approaches for the exploration of the the FEL system are considered. In the first case, the Heisenberg equations of motion are mapped on the basis of the initial wave functions ...
Alexander Iomin
doaj   +1 more source

Preliminary Investigation of Wavefield Depth Extrapolation by Two-Way Wave Equations

open access: yesInternational Journal of Geophysics, 2012
Most of the wavefield downward continuation migration approaches are relying on one-way wave equations, which move the seismic energy always in one direction along depth. The one-way downward continuation migrations only use the primaries for imaging and do not treat secondary reflections recorded on the surface correctly. In this paper, we investigate
Bangyu Wu, Ru-Shan Wu, Jinghuai Gao
openaire   +2 more sources

Hexagonal vs. Rectilinear Grids for Explicit Finite Difference Schemes for the Two-dimensional Wave Equation

open access: yes, 2013
Finite difference schemes for the 2-D wave equation operating on hexagonal grids and the accompanyingnumerical dispersion properties have received little attention in comparison to schemes operating on rectilinear grids.
Stefan Bilbao   +3 more
core   +1 more source

Numerical Stability and Dispersion Analysis of Finite-Difference Schemes for Wave Equation Time Migration [PDF]

open access: yesBrazilian Journal of Geophysics
We exploit finite-difference method schemes to solve the wave equation within the migrated time-domain, offering a robust alternative to traditional depth-domain imaging method.
Alexandre W. Camargo   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy