4.5 Article

A New Regularity Criterion for the Three-Dimensional Incompressible Magnetohydrodynamic Equations in the Besov Spaces

Journal

JOURNAL OF FUNCTION SPACES
Volume 2021, Issue -, Pages -

Publisher

HINDAWI LTD
DOI: 10.1155/2021/4227796

Keywords

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Funding

  1. MOOC of Anhui Province [2018mooc604]
  2. NSF of Anhui Province [KJ2018B0002]
  3. University Outstanding Talents Support Program Project of Anhui Province [gxyqZD2021144]

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The regularity criteria of the weak solutions to the 3D incompressible MHD equations are discussed, highlighting the importance of the scalar pressure field. It is shown that the weak solution is regular over a specific time interval in the Besov spaces.
Regularity criteria of the weak solutions to the three-dimensional (3D) incompressible magnetohydrodynamic (MHD) equations are discussed. Our results imply that the scalar pressure field pi plays an important role in the regularity problem of MHD equations. We derive that the weak solution (u, b) is regular on (0, T], which is provided for the scalar pressure field pi in the Besov spaces.

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