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arXiv 1012.5428math.AP
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一类退化半线性wave equations周期解的多重性和正则性

Multiplicity and regularity of periodic solutions for a class of degenerate semilinear wave equations

Jean Marcel Fokam

摘要:

证明了一类退化半线性波动方程:\[ u_{tt}-u_{xx}+|u|^{s-1}u=f(x,t), \]对所有$s>1$存在无穷多个经典周期解.特别是我们证明了存在无穷多个经典解的情况下$s=3$提出的Brézis在\cite{BrezisBAMS}。的证明依赖于一个新的上限先验估计的极大极小值,扰动从对称性,强不定功能,取决于一个小参数。

英文摘要:

We prove the existence of infinitely many classical periodic solutions for a class of degenerate semilinear wave equations: \[ u_{tt}-u_{xx}+|u|^{s-1}u=f(x,t), \] for all $s>1$. In particular we prove the existence of infinitely many classical solutions for the case $s=3$ posed by Brézis in \cite{BrezisBAMS}. The proof relies on a new upper a priori estimates for minimax values of, a pertubed from symmetry, strongly indefinite functional,depending on a small parameter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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