Abstract
In this article, we study the analytical smoothing effect of Cauchy problem for the incompressible Boussinesq equations. Precisely, we use the Fourier method to prove that the Sobolev H1-solution to the incompressible Boussinesq equations in periodic domain is analytic for any positive time. So the incompressible Boussinesq equations admit exactly same smoothing effect properties of incompressible Navier-Stokes equations.
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The research of the second author was supported partially by “The Fundamental Research Funds for Central Universities of China”.
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Cheng, F., Xu, C. Analytical Smoothing Effect of Solution for the Boussinesq Equations. Acta Math Sci 39, 165–179 (2019). https://doi.org/10.1007/s10473-019-0114-9
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DOI: https://doi.org/10.1007/s10473-019-0114-9