Journal
JOURNAL OF DIFFERENTIAL EQUATIONS
Volume 259, Issue 11, Pages 5982-6008Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jde.2015.07.013
Keywords
Hall-MHD system; Global well-posedness; Energy decay; Blow-up criteria
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In this paper, we obtain global existence and energy decay for 3D Hall-magnetohydrodynamics (Hall-MHD) system with Ait and AB. Besides the classical energy method and Besov space techniques, the interpolating inequalities are crucial in the proof of decay estimates. Then two Osgood type blow-up criteria are established. Our results improve the corresponding theorems in 3 and M. In addition, we establish two Beale Kato Majda blow-up criterion for the generalized version of Hall-MHD with -Delta u and (-Delta)beta B, beta>1. (C) 2015 Elsevier Inc. All rights reserved.
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