Results 71 to 80 of about 1,078 (81)

Large Initial Data Global Well-Posedness for a Supercritical Wave Equation [PDF]

open access: yesarXiv, 2016
We prove the existence of global solutions to the focusing energy-supercritical semilinear wave equation in R^{3+1} for arbitrary outgoing large initial data, after we modify the equation by projecting the nonlinearity on outgoing states.
arxiv  

A scattering-based algorithm for wave propagation in one dimension [PDF]

open access: yesarXiv, 2017
We present an explicit numerical scheme to solve the variable coefficient wave equation in one space dimension with minimal restrictions on the coefficient and initial data.
arxiv  

Decay of the local energy for the solutions of the critical Klein-Gordon equation [PDF]

open access: yesarXiv, 2019
In this paper, we prove the exponential decay of local energy for the Klein-Gordon equation with localized critical nonlinearity. The proof relies on generalized Strichartz estimates, and semi-group of Lax-Phillips.
arxiv  

Topological sensitivity based far-field detection of elastic inclusions

open access: yesResults in Physics, 2018
The aim of this article is to present and rigorously analyze topological sensitivity based algorithms for detection of diametrically small inclusions in an isotropic homogeneous elastic formation using single and multiple measurements of the far-field ...
Tasawar Abbas   +4 more
doaj  

Finite time blow up for wave equations with strong damping in an exterior domain [PDF]

open access: yesarXiv, 2019
We consider the initial boundary value problem in exterior domain for strongly damped wave equations with power type nonlinearity |u|^p. We will establish blow-up results under some conditions on the initial data and the exponent p.
arxiv  

Exponential energy decay and blow-up of solutions for a system of nonlinear viscoelastic wave equations with strong damping

open access: yesBoundary Value Problems, 2011
In this paper, we consider the system of nonlinear viscoelastic equations u t t - Δ u + ∫ 0 t g 1 ( t - τ ) Δ u ( τ ) d τ - Δ u t = f 1 ( u , v ) , ( x , t )
Liang Fei, Gao Hongjun
doaj  

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