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Long time behavior of solutions to the 2D Boussinesq equations with zero diffusivity. (English) Zbl 1452.35039

Summary: We address long time behavior of solutions to the 2D Boussinesq equations with zero diffusivity in the cases of the torus, \(\mathbb{R}^2\), and on a bounded domain with Lions or Dirichlet boundary conditions. In all the cases, we obtain bounds on the long time behavior for the norms of the velocity and the vorticity. In particular, we obtain that the norm \(\Vert(u,\rho)\Vert_{H^2\times H^1}\) is bounded by a single exponential, improving earlier bounds.

MSC:

35B40 Asymptotic behavior of solutions to PDEs
35Q35 PDEs in connection with fluid mechanics

References:

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