Results 1 to 10 of about 492 (27)

Instability and stability properties of traveling waves for the double dispersion equation [PDF]

open access: yes, 2002
In this article we are concerned with the instability and stability properties of traveling wave solutions of the double dispersion equation $~u_{tt} -u_{xx}+a u_{xxxx}-bu_{xxtt} = - (|u|^{p-1}u)_{xx}~$ for $~p>1$, $~a\geq b>0$.
H.A. Erbay   +21 more
core   +3 more sources

Global dynamics above the ground state energy for the one-dimensional NLKG equation [PDF]

open access: yes, 2010
In this paper we obtain a global characterization of the dynamics of even solutions to the one-dimensional nonlinear Klein-Gordon (NLKG) equation on the line with focusing nonlinearity |u|^{p-1}u, p>5, provided their energy exceeds that of the ground ...
Krieger, Joachim   +2 more
core   +2 more sources

General decay of the solution for a viscoelastic wave equation with a time-varying delay term in the internal feedback

open access: yes, 2012
In this paper we consider a viscoelastic wave equation with a time-varying delay term, the coefficient of which is not necessarily positive. By introducing suitable energy and Lyapunov functionals, under suitable assumptions, we establish a general ...
Abdallah C.   +7 more
core   +1 more source

Kirchhoff equations from quasi-analytic to spectral-gap data

open access: yes, 2010
In a celebrated paper (Tokyo J. Math. 1984) K. Nishihara proved global existence for Kirchhoff equations in a special class of initial data which lies in between analytic functions and Gevrey spaces.
Ghisi, Marina, Gobbino, Massimo
core   +1 more source

On cavitation in Elastodynamics [PDF]

open access: yes, 2012
Motivated by the works of Ball (1982) and Pericak-Spector and Spector (1988), we investigate singular solutions of the compressible nonlinear elastodynamics equations.
Giesselmann, Jan   +1 more
core  

Exponential energy decay of solutions for a system of viscoelastic wave equations of Kirchhoff type with strong damping

open access: yes, 2011
The initial boundary value problem for a system of viscoelastic wave equations of Kirchhoff type with strong damping is considered. We prove that, under suitable assumptions on relaxation functions and certain initial data, the decay rate of the ...
Agre K   +14 more
core   +1 more source

Harmonic coordinates in the string and membrane equations

open access: yes, 2010
In this note, we first show that the solutions to Cauchy problems for two versions of relativistic string and membrane equations are diffeomorphic. Then we investigate the coordinates transformation presented in Ref. [9] (see (2.20) in Ref.
Chun-Lei He   +2 more
core   +1 more source

A Remark on Unconditional Uniqueness in the Chern-Simons-Higgs Model [PDF]

open access: yes, 2013
The solution of the Chern-Simons-Higgs model in Lorenz gauge with data for the potential in $H^{s-1/2}$ and for the Higgs field in $H^s \times H^{s-1}$ is shown to be unique in the natural space $C([0,T];H^{s-1/2} \times H^s \times H^{s-1})$ for $s \ge 1$
Daniel   +2 more
core  

Periodic solutions of forced Kirchhoff equations

open access: yes, 2007
We consider Kirchhoff equations for vibrating bodies in any dimension in presence of a time-periodic external forcing with period 2pi/omega and amplitude epsilon, both for Dirichlet and for space-periodic boundary conditions.
Baldi, Pietro
core   +3 more sources

Nonlinear wave equations

open access: yes, 2003
The analysis of nonlinear wave equations has experienced a dramatic growth in the last ten years or so. The key factor in this has been the transition from linear analysis, first to the study of bilinear and multilinear wave interactions, useful in the ...
Tataru, Daniel
core   +1 more source

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