On the exterior problem for nonlinear wave equations with small initial data

2019 ◽  
Author(s):  
Hideo Kubo
Keyword(s):  
Initial Data ◽  
Nonlinear Wave ◽  
Wave Equations ◽  
Nonlinear Wave Equations ◽  
Exterior Problem ◽  
Small Initial Data

scholarly journals Growth of Solutions with Positive Initial Energy to Systems of Nonlinear Wave Equations with Damping and Source Terms

2015 ◽  
Vol 2015 ◽  
pp. 1-5
Author(s):  
Erhan Pişkin
Keyword(s):  
Initial Data ◽  
Nonlinear Wave ◽  
Wave Equations ◽  
Initial Boundary ◽  
Initial Energy ◽  
Nonlinear Wave Equations ◽  
Source Terms ◽  
Positive Initial Energy ◽  
Damping And Source Terms ◽  
Growth Of Solutions

We consider initial-boundary conditions for coupled nonlinear wave equations with damping and source terms. We prove that the solutions of the problem are unbounded when the initial data are large enough in some sense.

scholarly journals BILINEAR ESTIMATES AND APPLICATIONS TO NONLINEAR WAVE EQUATIONS

2002 ◽  
Vol 04 (02) ◽  
pp. 223-295 ◽  
Author(s):  
SERGIU KLAINERMAN ◽  
SIGMUND SELBERG
Keyword(s):  
Systematic Review ◽  
Cauchy Problem ◽  
Initial Data ◽  
Nonlinear Wave ◽  
Wave Equations ◽  
Large Data ◽  
Nonlinear Wave Equations ◽  
Well Posedness ◽  
Bilinear Estimates ◽  
The Cauchy Problem

We undertake a systematic review of results proved in [26, 27, 30-32] concerning local well-posedness of the Cauchy problem for certain systems of nonlinear wave equations, with minimal regularity assumptions on the initial data. Moreover we give a considerably simplified and unified treatment of these results and provide also complete proofs for large data. The paper is also intended as an introduction to and survey of current research in the very active area of nonlinear wave equations. The key ingredients throughout the survey are the use of the null structure of the equations we consider and, intimately tied to it, bilinear estimates.

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