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Commutator estimates with fractional derivatives and local existence for the generalized MHD equations
Zeitschrift für angewandte Mathematik und Physik ( IF 2 ) Pub Date : 2021-05-02 , DOI: 10.1007/s00033-021-01539-1 Zaihong Jiang , Caochuan Ma , Yong Zhou
中文翻译:
广义MHD方程的带分数导数和局部存在的交换子估计。
更新日期:2021-05-03
Zeitschrift für angewandte Mathematik und Physik ( IF 2 ) Pub Date : 2021-05-02 , DOI: 10.1007/s00033-021-01539-1 Zaihong Jiang , Caochuan Ma , Yong Zhou
This paper considers the problem of the local existence for the generalized MHD equations with fractional dissipative terms \(\Lambda ^{2\alpha } u\) for the velocity field and \(\Lambda ^{2\beta } b\) for the magnetic field, respectively. Based on some new commutator estimates, local existence for the generalized MHD equations is established, which recovers and improves previous results.
中文翻译:
广义MHD方程的带分数导数和局部存在的交换子估计。
本文考虑的局部存在性对于具有分数耗散项广义MHD方程的问题(\ LAMBDA ^ {2 \阿尔法} U \)\为速度场和\(\ LAMBDA ^ {2 \的β} b \)为磁场。基于一些新的换向器估计,建立了广义MHD方程的局部存在性,从而恢复并改善了先前的结果。