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arXiv 1907.09299math.AP
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具有结构阻尼的wave equations方程低正则解的成立性

Thresholds for low regularity solutions to wave equations with structural damping

Tomonori Fukushima, Ryo Ikehata, Hironori Michihisa

摘要:

研究了具有结构阻尼项\[ u_{tt}-Δu+Δ^2 u_t=0, \qquad u(0,x)=u_0(x), \,\,\, u_t(0,x)=u_1(x), \]的波动方程解在全空间的渐近性态。本文报道了新的阈值,表明其中的扩散波属性和非扩散结构占主导地位,在低的规则性的情况下。为此,我们发展了前一作者在2019年的研究,他们提出了一个阈值,该阈值表示类抛物性质或类波动性质是否强烈出现在某些正则性损失型耗散波动方程的解中。

英文摘要:

We study the asymptotic behavior of solutions to wave equations with a structural damping term \[ u_{tt}-Δu+Δ^2 u_t=0, \qquad u(0,x)=u_0(x), \,\,\, u_t(0,x)=u_1(x), \] in the whole space. New thresholds are reported in this paper that indicate which of the diffusion wave property and the non-diffusive structure dominates in low regularity cases. We develop to that end the previous author's research in 2019 where they have proposed a threshold that expresses whether the parabolic-like property or the wave-like property strongly appears in the solution to some regularity-loss type dissipative wave equation.

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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