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arXiv 1609.01035math.AP
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具有不定常阻尼和幂型非线性的wave equation系统的寿命和爆破率估计

Estimates of lifespan and blow-up rates for the wave equation with a time-dependent damping and a power-type nonlinearity

Kazumasa Fujiwara, Masahiro Ikeda, Yuta Wakasugi

摘要:

研究了具有不定常阻尼的半线性波动方程Cauchy问题解的爆破行为。当阻尼是有效的,和非线性是亚临界的,我们显示的爆破率和尖锐的寿命估计的解决方案。上估计证明了一个ODE参数,和下估计给出了一种方法的缩放变量。

英文摘要:

We study blow-up behavior of solutions for the Cauchy problem of the semilinear wave equation with time-dependent damping. When the damping is effective, and the nonlinearity is subcritical, we show the blow-up rates and the sharp lifespan estimates of solutions. Upper estimates are proved by an ODE argument, and lower estimates are given by a method of scaling variables.

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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