“…• B ε satisfy a uniform δ − cone condition, with δ > 0 independent of ε, ( The boundary of our oscillating body {B ε } should fulfill the uniform C 2 -domain condition from [4].…”
Section: Scalingmentioning
confidence: 99%
“…Note that condition (1.14) is chosen in the spirit of Farwig, Kozono, and Sohr [4]. More specifically, the scaled domains 1/ε α Ω ε are the uniform C 2 -domains discussed in [4].…”
We consider a mathematical model of a rigid body immersed in a viscous, compressible fluid moving with a velocity prescribed on the boundary of a large channel containing the body. We show continuity of the drag functional as well as domain shape stability of solutions in the incompressible limit, with the Mach number approaching zero.
“…• B ε satisfy a uniform δ − cone condition, with δ > 0 independent of ε, ( The boundary of our oscillating body {B ε } should fulfill the uniform C 2 -domain condition from [4].…”
Section: Scalingmentioning
confidence: 99%
“…Note that condition (1.14) is chosen in the spirit of Farwig, Kozono, and Sohr [4]. More specifically, the scaled domains 1/ε α Ω ε are the uniform C 2 -domains discussed in [4].…”
We consider a mathematical model of a rigid body immersed in a viscous, compressible fluid moving with a velocity prescribed on the boundary of a large channel containing the body. We show continuity of the drag functional as well as domain shape stability of solutions in the incompressible limit, with the Mach number approaching zero.
“…for initial values in suitable extrapolation spaces. We mention that there are other approaches to the Navier-Stokes equations for rough initial data or on general domains (see e.g., [25,27,26,14]), and we shall comment on them at the end of each subsection in Section 4.…”
Abstract. We investigate Kato's method for parabolic equations with a quadratic non-linearity in an abstract form. We extract several properties known from linear systems theory which turn out to be the essential ingredients for the method. We give necessary and sufficient conditions for these conditions and provide new and more general proofs, based on real interpolation. In application to the Navier-Stokes equations, our approach unifies several results known in the literature, partly with different proofs. Moreover, we establish new existence and uniqueness results for rough initial data on arbitrary domains in R 3 and irregular domains in R n .
“…Lemma 3.6 Assume the same for r, ω, α, β and λ as in Lemma 3.5. Then there exists an A r -consistent constant c = c(ε, r, β, Σ, A r (ω)) > 0 such that for every (u, p) ∈ D(S ω r,λ,η ), 6) where…”
Section: Remark 34mentioning
confidence: 99%
“…[1], [14], [16]) of Stokes operators for domains with compact as well as noncompact boundaries. General unbounded domains are considered in [6] by replacing the space L q by L q ∩L 2 or L q + L 2 . For resolvent estimates and maximal regularity in unbounded cylinders without exponential weights in the axial direction we refer the reader e.g.…”
We study resolvent estimate and maximal regularity of the Stokes operator in L q -spaces with exponential weights in the axial directions of unbounded cylinders of R n , n ≥ 3. For straights cylinders we obtain these results in Lebesgue spaces with exponential weights in the axial direction and Muckenhoupt weights in the cross-section. Next, for general cylinders with several exits to infinity we prove that the Stokes operator in L q -spaces with exponential weight along the axial directions generates an exponentially decaying analytic semigroup and has maximal regularity.The proofs for straight cylinders use an operator-valued Fourier multiplier theorem and techniques of unconditional Schauder decompositions based on the R-boundedness of the family of solution operators for a system in the cross-section of the cylinder parametrized by the phase variable of the onedimensional partial Fourier transform. For general cylinders we use cut-off techniques based on the result for straight cylinders and the result for the case without exponential weight.
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