Journal
JOURNAL OF DIFFERENTIAL EQUATIONS
Volume 249, Issue 5, Pages 1078-1088Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jde.2010.03.021
Keywords
2D Boussinesq equations; Global regularity; Vertical diffusion
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Funding
- NSF [DMS 0709228, DMS 0907913]
- FIU foundation
- Foundation at OSU
- Direct For Mathematical & Physical Scien
- Division Of Mathematical Sciences [907913] Funding Source: National Science Foundation
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This paper aims at the global regularity of classical solutions to the 2D Boussinesq equations with vertical dissipation and vertical thermal diffusion. We prove that the L-tau-norm of the vertical velocity v for any 1 < r < infinity is globally bounded and that the L-infinity-norm of v controls any possible breakdown of classical solutions. In addition, we show that an extra thermal diffusion given by the fractional Laplace (-Delta)(delta) for delta > 0 would guarantee the global regularity of classical solutions. (C) 2010 Elsevier Inc. All rights reserved.
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