Abstract
We consider the problem of regularization by noises for the three-dimensional magnetohydrodynamical (3D MHD) equations. It is shown that in a suitable scaling limit, the multiplicative noise of transport type gives rise to bounds on the vorticity fields of the fluid velocity and magnetic fields. As a result, if the noise intensity is big enough, then the stochastic 3D MHD equations admit a pathwise unique global solution for large initial data with high probability.
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Acknowledgements
This work was supported by the National Key R&D Program of China (Grant No. 2020YFA0712700), National Natural Science Foundation of China (Grant Nos. 11931004 and 12090014) and the Youth Innovation Promotion Association, Chinese Academy of Sciences (Grant No. Y2021002). The author thanks the referees for helpful comments on the first version of this paper.
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Luo, D. Regularization by transport noises for 3D MHD equations. Sci. China Math. 66, 1375–1394 (2023). https://doi.org/10.1007/s11425-021-1981-9
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DOI: https://doi.org/10.1007/s11425-021-1981-9