This work establishes local existence and uniqueness as well as blow-up criteria for solutions $ (u,b)(x,t) $ of the Magneto–Hydrodynamic equations in Sobolev–Gevrey spaces $ \dot{H}^s_{a,\sigma}(\mathbb{R}^3) $. More precisely, we prove that there is a time $ T>0 $ such that $ (u,b)\in C([0,T];\dot{H}_{a,\sigma}^s(\mathbb{R}^3)) $ for $ a>0, \sigma\geq1 $ and $ \frac{1}{2}<s<\frac{3}{2} $. If the maximal time interval of existence is finite, $ 0\leq t < T^* $, then the blow–up inequality
$ \frac{C_1\exp\{C_2(T^*-t)^{-\frac{1}{3\sigma}}\}\;\;\;\;\;\;\;}{\;\;\;\;(T^*-t)^{q}\;\;\;\;} \;\;\;\;\;\;\;\;\;\;\leq \|(u,b)(t)\|_{\dot{H}_{a,\sigma}^s(\mathbb{R}^3)} \quad \mbox{with}\,\, q = {\frac{2(s\sigma+\sigma_0)+1}{6\sigma}} $
holds for $ 0\leq t<T^*, \frac{1}{2}<s<\frac{3}{2} $, $ a>0 $, $ \sigma> 1 $ ($ 2\sigma_0 $ is the integer part of $ 2\sigma $).
| Citation: |
| [1] |
J. Benameur, On the blow-up criterion of 3D Navier-Stokes equations, J. Math. Anal. Appl., 371 (2010), 719-727.
doi: 10.1016/j.jmaa.2010.06.007.
|
| [2] |
J. Benameur, On the blow-up criterion of the periodic incompressible fluids, Math. Methods Appl. Sci., 36 (2013), 143-153.
doi: 10.1002/mma.2577.
|
| [3] |
J. Benameur, On the exponential type explosion of Navier-Stokes equations, Nonlinear Analysis, 103 (2014), 87-97.
doi: 10.1016/j.na.2014.03.011.
|
| [4] |
J. Benameur and L. Jlali, On the blow-up criterion of 3D-NSE in Sobolev-Gevrey spaces, J. Math. Fluid Mech., 18 (2016), 805-822.
doi: 10.1007/s00021-016-0263-8.
|
| [5] |
A. Biswas, Local existence and Gevrey regularity of 3-D Navier-Stokes equations with lp initial data, J. Differential Equations, 215 (2005), 429-447.
doi: 10.1016/j.jde.2004.12.012.
|
| [6] |
P. Braz e Silva, W. G. Melo and P. R. Zingano, Some remarks on the paper "On the blow up criterion of 3D Navier-Stokes equations" by J. Benameur, C. R. Acad. Sci. Paris, Ser. I, 352 (2014), 913-915.
doi: 10.1016/j.crma.2014.09.012.
|
| [7] |
P. Braz e Silva, W. G. Melo and P. R. Zingano, Lower bounds on blow-up of solutions for magneto-micropolar fluid systems in homogeneous sobolev spaces, Acta Appl Math., 147 (2017), 1-17.
doi: 10.1007/s10440-016-0065-2.
|
| [8] |
P. Braz e Silva, W. G. Melo and N. F. Rocha, Existence, Uniqueness and Blow-up of Solutions for the 3D Navier-Stokes Equations in Homogeneous Sobolev-Gevrey Spaces, Submitted, 2018.
|
| [9] |
M. Cannone, Harmonic Analysis Tools for Solving the Incompressible Navier-Stokes Equations, in: Handbook of Mathematical Fluid Dynamics, Vol. 3, Elsevier, 2004.
|
| [10] |
J.-Y. Chemin, About Navier-Stokes Equations, Publication du Laboratoire Jaques-Louis Lions, Université de Paris Ⅵ R96023, 1996.
|
| [11] |
J. Leray, Essai sur le mouvement d'un liquide visqueux emplissant l'espace, Acta Mathematica, 63 (1933), 22-25.
|
| [12] |
J. Leray, Sur le mouvement d'un liquide visqueux emplissant l'espace, Acta Math., 63 (1934), 193-248.
doi: 10.1007/BF02547354.
|
| [13] |
J. Lorenz and P. R. Zingano, Properties at potential blow-up times for the incompressible Navier-Stokes equations, Bol. Soc. Paran. Mat., 35 (2017), 127-158.
doi: 10.5269/bspm.v35i2.27508.
|
| [14] |
W. G. Melo, The magneto-micropolar equations with periodic boundary conditions: Solution properties at potential blow-up times, J. Math. Anal. Appl., 435 (2016), 1194-1209.
doi: 10.1016/j.jmaa.2015.11.005.
|
| [15] |
J. Yuan, Existence theorem and blow-up criterion of the strong solutions to the magneto-micropolar fluid equations, Math. Methods Appl. Sci., 31 (2008), 1113-1130.
doi: 10.1002/mma.967.
|