Abstract
Whether or not the classical solutions of the two-dimensional (2D) incompressible magnetohydrodynamics (MHD) equations with only Laplacian magnetic diffusion (without velocity dissipation) are globally well posed is a difficult problem and remains completely open. In this paper, we establish the global regularity of solutions to the 2D incompressible MHD equations with almost Laplacian magnetic diffusion in the whole space. This result can be regarded as a further improvement and generalization of the previous works. Consequently, our result is more closer to the resolution of the global regularity issue on the 2D MHD equations with standard Laplacian magnetic diffusion.
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Acknowledgements
The author would like to thank the anonymous referee and the corresponding editor for their insightful comments and many valuable suggestions, which greatly improved the exposition of the manuscript. The author was supported by the Foundation of Jiangsu Normal University (No. 16XLR029), the Natural Science Foundation of Jiangsu Province (No. BK20170224), the National Natural Science Foundation of China (No. 11701232).
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Ye, Z. Remark on the global regularity of 2D MHD equations with almost Laplacian magnetic diffusion. J. Evol. Equ. 18, 821–844 (2018). https://doi.org/10.1007/s00028-017-0421-3
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DOI: https://doi.org/10.1007/s00028-017-0421-3