Results 51 to 60 of about 7,785,042 (211)

The gravitational-wave memory from eccentric binaries [PDF]

open access: yes, 2011
The nonlinear gravitational-wave memory causes a time-varying but nonoscillatory correction to the gravitational-wave polarizations. It arises from gravitational waves that are sourced by gravitational waves.
C. Moreno-Garrido   +18 more
core   +2 more sources

Solution property preserving reconstruction for finite volume scheme: a boundary variation diminishing+multidimensional optimal order detection framework

open access: yesInternational Journal for Numerical Methods in Fluids, 2019
The purpose of this work is to build a general framework to reconstruct the underlying fields within a finite volume (FV) scheme solving a hyperbolic system of PDEs (Partial Differential Equations).
Siengdy Tann   +4 more
semanticscholar   +1 more source

Computational Fluid Dynamics of the Flow of the Deformable Toroidal Embolic Agents Within Straight and Stenotic Pipes by Full Eulerian FSI Method

open access: yesInternational Journal for Numerical Methods in Biomedical Engineering, Volume 41, Issue 9, September 2025.
We numerically analyzed the flow and deformation of a toroidal embolic agent in straight and stenotic pipes with full Eulerian fluid‐structure interaction. The fluid passes through the hole of the torus, and the deformation is categorized into three deformation modes such as bending, rotation, and elongation.
Kazuki Matsumiya   +4 more
wiley   +1 more source

On the Nonoscillation of Second-Order Neutral Delay Differential Equation with Forcing Term

open access: yesDiscrete Dynamics in Nature and Society, 2008
This paper is concerned with nonoscillation of second-order neutral delay differential equation with forcing term. By using contraction mapping principle, some sufficient conditions for the existence of nonoscillatory solution are established.
Jin-Zhu Zhang   +5 more
doaj   +1 more source

Oscillations of advanced difference equations with variable arguments

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
Consider the first-order advanced difference equation of the form \begin{equation*} \nabla x(n)-p(n)x(\mu (n))=0\text{, }\ n\geq 1\, [\Delta x(n)-p(n)x(\nu (n))=0, n\geq 0], \end{equation*} where $\nabla $ denotes the backward difference operator ...
George Chatzarakis, Ioannis Stavroulakis
doaj   +1 more source

High-resolution simulations and modeling of reshocked single-mode Richtmyer-Meshkov instability: Comparison to experimental data and to amplitude growth model predictions [PDF]

open access: yes, 2007
The reshocked single-mode Richtmyer-Meshkov instability is simulated in two spatial dimensions using the fifth- and ninth-order weighted essentially nonoscillatory shock-capturing method with uniform spatial resolution of 256 points per initial ...
Don, Wai Sun   +2 more
core   +1 more source

An Explicit Factorization of the Green's Function for an Acoustic Half‐Space Problem with Impedance Boundary Conditions into an Oscillatory Exponential and a Slowly Varying Function

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 13, Page 12807-12812, September 2025.
ABSTRACT In this paper, new representations of the Green's function for an acoustic d$$ d $$‐dimensional half‐space problem with impedance boundary conditions are presented. The main features of the new representation are in addition to additive terms that appear also in the case of Dirichlet or Neumann boundary conditions, the remaining part of the ...
C. Lin, J. M. Melenk, S. Sauter
wiley   +1 more source

Monotonicity conditions in oscillation to superlinear differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
We consider the second order differential equation \[ \bigl(a(t)|x^{\prime}|^{\alpha}\operatorname{sgn\,}x^{\prime}\bigr)^{\prime }+b(t)|x|^{\beta}\operatorname{sgn\,}x=0 \] in the super-linear case ...
Zuzana Dosla, Mauro Marini
doaj   +1 more source

Asymptotic proximity to higher order nonlinear differential equations

open access: yesAdvances in Nonlinear Analysis, 2022
The existence of unbounded solutions and their asymptotic behavior is studied for higher order differential equations considered as perturbations of certain linear differential equations.
Astashova Irina   +3 more
doaj   +1 more source

On systems of differential equations with extrinsic oscillation [PDF]

open access: yes, 2010
We present a numerical scheme for an efficient discretization of nonlinear systems of differential equations subjected to highly oscillatory perturbations.
Condon, Marissa   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy