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arXiv 2203.01115math.APmath-phmath.MP
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三维不可压MHD系统在压力-速度-磁场混合场中的正则性判据

A regularity criterion of 3D incompressible MHD system with mixed pressure-velocity-magnetic field

Ahmad M. Alghamdi, Sadek Gala, Maria Alessandra Ragusa

摘要:

本文从Lorentz空间出发,研究了三维不可压缩磁流体动力学方程组。我们的主要结果表明,只要$${\frac{π}{\left( e^{-\left\vert x\right\vert ^{2}}+\left\vert u\right\vert +\left\vert b\right\vert \right) ^{θ}}\in L}^{p}(0,T;L^{q,\infty }(\mathbb{R}^{3})),\text{ where }\frac{2}{p}+\frac{3}{% q}=2-θ\text{ and }0\leq θ\leq 1.$$

英文摘要:

This work focuses on the 3D incompressible magnetohydrodynamic (MHD) equations with mixed pressure-velocity-magnetic field in view of Lorentz spaces. Our main result shows the weak solution is regular, provided that $${\frac{π}{\left( e^{-\left\vert x\right\vert ^{2}}+\left\vert u\right\vert +\left\vert b\right\vert \right) ^{θ}}\in L}^{p}(0,T;L^{q,\infty }(\mathbb{R}^{3})),\text{ where }\frac{2}{p}+\frac{3}{% q}=2-θ\text{ and }0\leq θ\leq 1.$$

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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