Abstract.
We study the generalized Stokes equations in asymptotically flat layers, which can be considered as compact perturbations of an infinite (flat) layer \(\Omega _0 = \mathbb{R}^{n - 1} \times ( - 1,1).\) Besides standard non-slip boundary conditions, we consider a mixture of slip and non-slip boundary conditions on the upper and lower boundary, respectively. In this second part, we use pseudodifferential operator techniques to construct a parametrix to the reduced Stokes equations, which solves the system in Lq-Sobolev spaces, 1 < q < ∞, modulo terms which get arbitrary small for large resolvent parameters λ. This parametrix can be analyzed to prove the existence of a bounded H∞-calculus of the (reduced) Stokes operator.
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Abels, H. Reduced and Generalized Stokes Resolvent Equations in Asymptotically Flat Layers, Part II: H∞-Calculus. J. math. fluid mech. 7, 223–260 (2005). https://doi.org/10.1007/s00021-004-0117-7
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DOI: https://doi.org/10.1007/s00021-004-0117-7