Results 31 to 40 of about 1,087,074 (217)
Propulsion 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
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Well-posedness of one-way wave equations and absorbing boundary conditions [PDF]
Mathematics of Computation, 1986 A one-way wave equation is a partial differential equation which, in some approximate sense, behaves like the wave equation in one direction but permits no propagation in the opposite one. Such equations are used in geophysics, in underwater acoustics, and as numerical "absorbing boundary conditions".
Trefethen, Lloyd N., Halpern, Laurence
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Exact quantum states of a general time-dependent quadratic system from classical action
, 1998 A generalization of driven harmonic oscillator with time-dependent mass and frequency, by adding total time-derivative terms to the Lagrangian, is considered.
A. Mostafazadeh +25 more
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On the asymptotic spatial behaviour of the solutions of the nerve system [PDF]
, 2015 In this paper we investigate the asymptotic spatial behavior of the solutions for several models for the nerve fibers. First, our analysis deals with the coupling of two parabolic equations. We prove that, under suitable assumptions on the coefficients
Leseduarte Milán, María Carme +1 more
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Amplitude-Preserved Wave Equation: An Example to Image the Gas Hydrate System
Energies, 2021 Natural gas hydrate is an important energy source. Therefore, it is extremely important to provide a clear imaging profile to determine its distribution for energy exploration. In view of the problems existing in conventional migration methods, e.g., the
Jiachun You +4 more
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Derivation of a one-way radiative transfer equation in random media
, 2016 We derive from first principles a one-way radiative transfer equation for the wave intensity resolved over directions (Wigner transform of the wave field) in random media.
Borcea, Liliana, Garnier, Josselin
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On an efficient approach to solutions of a perturbed nonlinear Schrödinger’s equation
Results in Physics, 2022 The main objective of this paper is to retrieve the analytical solutions for a perturbed nonlinear Schrödinger’s equation. These achievements are obtained by following the basic steps of an efficient approach.
Kamsing Nonlaopon +4 more
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Representation of Dissipative Solutions to a Nonlinear Variational Wave Equation [PDF]
, 2014 The paper introduces a new way to construct dissipative solutions to a second order variational wave equation. By a variable transformation, from the nonlinear PDE one obtains a semilinear hyperbolic system with sources. In contrast with the conservative
Bressan, Alberto, Huang, Tao
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, 2011 Perturbations of Schwarzschild-Droste black holes in the Regge-Wheeler gauge benefit from the availability of a wave equation and from the gauge invariance of the wave function, but lack smoothness.
Aoudia, Sofiane +1 more
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Constraint and gauge shocks in one-dimensional numerical relativity [PDF]
, 2004 We study how different types of blow-ups can occur in systems of hyperbolic evolution equations of the type found in general relativity. In particular, we discuss two independent criteria that can be used to determine when such blow-ups can be expected ...
B. Gustafsson +22 more
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