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arXiv · 2411.01461

Large time behavior of solutions to the 2D damped wave-type magnetohydrodynamic equations

Yaowei Xie·Huan Yu
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Abstract

In this paper, we are concerned with the 2D damped wave-type magnetohydrodynamic system (abbreviated as MHD-wave system). The purpose of this paper is to study the large time behavior of solutions to the MHD-wave system, espesically to investigate the influence of the bad term $\gamma \partial_{tt}b$ on the large time behavior. Rates of decay are obtained for both the solutions and higher derivatives in different Sobolev spaces with explicit rates of $\gamma$, which shows that the decay rates closely align with that of the MHD system under the same norm, for any fixed $\gamma>0$. In this sense, these decay rates are optimal.

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Yaowei Xie, Huan Yu. 2024-11-03. Large time behavior of solutions to the 2D damped wave-type magnetohydrodynamic equations. https://arxiv.org/abs/2411.01461

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