Results 71 to 80 of about 1,087,074 (217)
Three-Dimensional Complex Padé FD Migration: Splitting and Corrections
International Journal of Geophysics, 2012 Three-dimensional wave-equation migration techniques are still quite expensive because of the huge matrices that need to be inverted. Several techniques have been proposed to reduce this cost by splitting the full 3D problem into a sequence of 2D ...
D. Mondini +3 more
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Localization of dependence for solutions of hyperbolic differential equations
Electronic Journal of Differential Equations, 2000 We survey several results that localize the dependence of solutions to hyperbolic equations. These observations address questions that are central to numerical simulation of solutions on unbounded spatial domains. One result shows that in principle it is
Henry Warchall
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One way wave equation type ABCs for terminatinglow loss media
Electronics Letters, 1997 Absorbing boundary condition (ABC) formulations are derived for low loss media from lossy one way wave equations. The results of a numerical study are presented showing that errors in a low loss computational domain, due to the reflections from the domain boundaries, are significantly lower when the boundaries are terminated by these ABCs instead of ...
O. Ramadan, A.Y. Niazi
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Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електронікаRelevance. In connection with solving the problem of scattering of electromagnetic waves (diffraction problem) on objects such as photonic crystals (one-dimensional periodic unbounded), it is important to study the dispersion relation.
O. V. Kazanko +2 more
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One-Way Wave Propagators For Velocity Analysis On Curvilinear Coordinates [PDF]
, 2008 Due to present computational limitations, migration by the one-way wave equation remains an integral tool in seismic exploration. For the realistic interpretation of common image point gathers, it is necessary that migration be free from artifacts from ...
Budkick, Scott +2 more
core
International Journal of Mathematics and Mathematical SciencesThis study presents the Benjamin-Bona-Mahony equation, a new mathematical model for nonlinear wave propagation in medium with just spatial dispersion. The suggested model only considers spatial derivatives, hence representing pure spatial dispersion, in ...
Saima Arshed +4 more
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A Comparison of Splitting Techniques for 3D Complex Padé Fourier Finite Difference Migration
International Journal of Geophysics, 2011 Three-dimensional wave-equation migration techniques are still quite expensive because of the huge matrices that need to be inverted. Several techniques have been proposed to reduce this cost by splitting the full 3D problem into a sequence of 2D ...
Jessé C. Costa +3 more
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Electronic Journal of Differential Equations, 2007 The spatially periodic Kuramoto-Sivashinsky equation (pKS) $$ partial_t u=-partial_x^4 u-c_3partial_x^3 u-c_2partial_x^2 u+2 deltapartial_x(cos( x)u)-partial_x(u^2), $$ with $u(t,x)inmathbb{R}$, $tgeq 0$, $xinmathbb{R}$, is a model problem for inclined ...
Andreas Wierschem, Hannes Uecker
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Nanomaterials, 2018 The mechanical and quantum properties of a nanomechanical resonator can be improved by connecting it to a superconducting resonator in a way that the resonator exhibits new phenomena that are possibly available to novel quantum technologies.
Jeong Ryeol Choi, Sanghyun Ju
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How Can We Manage Repairing a Broken Finite Vibrating String? Solutions to the Problem I
Journal of Optimization, Differential Equations and Their ApplicationsThe current research deals with an initial-boundary value problem (IBVP) with the Dirichlet boundary conditions for the 1D homogeneous wave equation with discontinuous piece-wise constant coefficient previously formulated (JODEA, 31 (2) (2023), 89 – 114)
Vladimir L. Borsch
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