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arXiv 2010.02485math.APmath-phmath.MP
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一个连续对数型发展方程:渐近分布和最优估计

A dissiptive logarithmic type evolution equation: asymptotic profile and optimal estimates

Alessandra Piske, Ruy Coimbra Charão, Ryo Ikehata

摘要:

我们引入了一个新的模型的对数型波动方程的非局部对数阻尼机制,这是相当弱的有效性相比,经常研究的分数阻尼情况。我们在整个空间中考虑了这一新模型的Cauchy问题,并在L^{2}-意义下研究了解的渐近分布和最优衰减和/或爆破速率. Charao-Ikehata在2020年研究的论文中用算子L耗散波动方程的解,在低频参数下,方程的主部和阻尼项的有效性要弱于已有研究的幂型算子。

英文摘要:

We introduce a new model of the logarithmic type of wave-like equation with a nonlocal logarithmic damping mechanism, which is rather weakly effective as compared with frequently studied fractional damping cases. We consider the Cauchy problem for this new model in the whole space, and study the asymptotic profile and optimal decay and/or blowup rates of solutions as time goes to infinity in L^{2}-sense. The operator L considered in this paper was used to dissipate the solutions of the wave equation in the paper studied by Charao-Ikehata in 2020, and in the low frequency parameters the principal part of the equation and the damping term is rather weakly effective than those of well-studied power type operators.

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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