scholarly journals Controllability for one-dimensional nonlinear wave equations with degenerate damping

2017 ◽  
Vol 100 ◽  
pp. 66-72
Author(s):  
Jieqiong Wu ◽  
Xianzheng Zhu ◽  
Shugen Chai
Keyword(s):  
Nonlinear Wave ◽  
Wave Equations ◽  
Nonlinear Wave Equations ◽  
One Dimensional

scholarly journals A uniqueness result for the Sine-Gordon breather

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Rainer Mandel
Keyword(s):  
Nonlinear Wave ◽  
Wave Equations ◽  
Uniqueness Result ◽  
Nonlinear Wave Equations

AbstractIn this note we prove that the sine-Gordon breather is the only quasimonochromatic breather in the context of nonlinear wave equations in $$\mathbb {R}^N$$ R N .

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