scholarly journals Global entropy solutions to a class of quasi-linear wave equations with large time-oscillating sources

2011 ◽  
Vol 250 (9) ◽  
pp. 3668-3700 ◽  
Author(s):  
Ying-Chin Su
Keyword(s):  
Wave Equations ◽  
Large Time ◽  
Entropy Solutions ◽  
Linear Wave ◽  
Linear Wave Equations

Stability theory for quasi-linear wave equations with linear damping

1981 ◽  
Vol 88 (1-2) ◽  
pp. 25-41 ◽  
Author(s):  
R. W. Dickey
Keyword(s):  
Equilibrium Solution ◽  
Wave Equations ◽  
Multiple Equilibria ◽  
Large Time ◽  
Linear Wave ◽  
Time Behaviour ◽  
Unique Equilibrium ◽  
Linear Wave Equation ◽  
Linear Damping ◽  
Linear Wave Equations

SynopsisLarge time behaviour of solutions to a damped quasi-linear wave equation are studied. Conditions are obtained which guarantee the global existence of a classical solution. The asymptotic behaviour of this solution is studied in the case of a unique equilibrium solution and in the case of multiple equilibria. The results are applied to various special examples.

Uniqueness for stochastic non-linear wave equations

2007 ◽  
Vol 67 (12) ◽  
pp. 3287-3310 ◽  
Author(s):  
Martin Ondreját
Keyword(s):  
Wave Equations ◽  
Linear Wave ◽  
Non Linear ◽  
Linear Wave Equations

An inverse scattering theorem for (1 + 1)-dimensional semi-linear wave equations with null conditions

2021 ◽  
Vol 18 (01) ◽  
pp. 143-167
Author(s):  
Mengni Li
Keyword(s):  
Inverse Scattering ◽  
Wave Equations ◽  
Scattering Problem ◽  
Weighted Sobolev Spaces ◽  
One Dimension ◽  
Energy Estimates ◽  
Small Data ◽  
Linear Wave ◽  
Global Existence Of Solutions ◽  
Linear Wave Equations

We are interested in the inverse scattering problem for semi-linear wave equations in one dimension. Assuming null conditions, we prove that small data lead to global existence of solutions to [Formula: see text]-dimensional semi-linear wave equations. This result allows us to construct the scattering fields and their corresponding weighted Sobolev spaces at the infinities. Finally, we prove that the scattering operator not only describes the scattering behavior of the solution but also uniquely determines the solution. The key ingredient of our proof is the same strategy proposed by Le Floch and LeFloch [On the global evolution of self-gravitating matter. Nonlinear interactions in Gowdy symmetry, Arch. Ration. Mech. Anal. 233 (2019) 45–86] as well as Luli et al. [On one-dimension semi-linear wave equations with null conditions, Adv. Math. 329 (2018) 174–188] to make full use of the null structure and the weighted energy estimates.

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