Abstract
The paper deals with the 3D incompressible MHD equations and aims at improving a regularity criterion in terms of the horizontal gradient of velocity and magnetic field. It is proved that the weak solution (u, b) becomes regular provided that
The result is an extension of regularity criterion for 3D Navier–Stokes equations in Besov space due to Fang and Qian (Commun Pure Appl Anal 13:585–603, 2014) [see also (Ni et al. in J Math Anal Appl 396:108–118, 2012)].
Similar content being viewed by others
References
Cao, C., Wu, J.: Two regularity criteria for the 3D MHD equations. J. Differential Equations 248, 2263–2274 (2010)
Duvaut, G., Lions, J.L.: Inéquations en thermoé lasticité et magnéto-hydrodynamique. Arch. Rational Mech. Anal. 46, 241–279 (1972)
Fang, D.Y., Qian, C.Y.: Regularity criteria for 3D Navier-Stokes equations in Besov space. Commun. Pure Appl. Anal. 13, 585–603 (2014)
He, C., **n, Z.: On the regularity of weak solutions to the magnetohydrodynamic equations. J. Differential Equations 213, 235–254 (2005)
Jia, X., Zhou, Y.: Regularity criteria for the 3D MHD equations involving partial components. Nonlinear Anal. Real World Appl. 13, 410–418 (2012)
Jia, X., Zhou, Y.: Regularity criteria for the 3D MHD equations via partial derivatives. Kinet. Relat. Models 5, 505–516 (2012)
Mahalov, A., Nicolaenko, B., Shilkin, T.: \(L^{3,\infty }\) solutions to the MHD equations. J. Math. Sci. 143, 2911–2923 (2007)
Meyer, Y., Gerard, P., Oru, F.: Inégalités de Sobolev précisées, Séminaire Équations aux dérivées partielles (Polytechnique) (1996–1997), Exp. \(\text{N}^{\circ }\)4, p. 8
Ni, L., Guo, Z., Zhou, Y.: Some new regularity criteria for the 3D MHD equations. J. Math. Anal. Appl. 396, 108–118 (2012)
Sermange, M., Temam, R.: Some mathematical questions related to the MHD equations. Commun. Pure Appl. Math. 36, 635–664 (1983)
Triebel, H.: Theory of Function Spaces. Birkhäuser, Basel (1983)
Yuan, B., Li, X.: Blow-up criteria of smooth solutions to the three-dimensional micropolar fluid equations in Besov space. Discrete Contin. Dyn. Syst. 9, 2167–2179 (2016)
Zhou, Y.: Remarks on regularities for the 3D MHD equations. Discrete Continuous Dyn. Syst. 12, 881–886 (2005)
Zhou, Y., Gala, S.: Regularity criteria for the solutions to the 3D MHD equations in the multiplier space. Z. Angew. Math. Phys. 61, 193–199 (2010)
Zhou, Y., Gala, S.: A new regularity criterion for weak solutions to the viscous MHD equations in terms of the vorticity field. Nonlinear Anal. 72, 3643–3648 (2010)
Acknowledgements
The part of the work was carried out, while the first author was long-term visitor at University of Catania. The hospitality and support of Catania University are graciously acknowledged. Maria Alessandra Ragusa is supported by the Ministry of Education and Science of the Russian Federation (Agreement No. 02. a 03.21.0008). The authors would like to thank the referees for valuable comments and suggestions.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Gala, S., Ragusa, M.A. On the regularity criterion of weak solutions for the 3D MHD equations. Z. Angew. Math. Phys. 68, 140 (2017). https://doi.org/10.1007/s00033-017-0890-9
Received:
Revised:
Published:
DOI: https://doi.org/10.1007/s00033-017-0890-9