7 research outputs found

    The radial curvature of an end that makes eigenvalues vanish in the essential spectrum II

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    Under the quadratic-decay-conditions of the radial curvatures of an end, we shall derive growth estimates of solutions to the eigenvalue equation and show the absence of eigenvalues.Comment: " \ge " in the conditions (4)(*_4) and (5)(*_5) should be replaced by ">>". γn12(ba)\gamma \ge \frac{n-1}{2}(b-a) in the conclusion of Theorem 1.3 should be replaced by γ>n12(ba)\gamma > \frac{n-1}{2}(b-a); trivial miss-calculatio

    Mathematical Models of Incompressible Fluids as Singular Limits of Complete Fluid Systems

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    A rigorous justification of several well-known mathematical models of incompressible fluid flows can be given in terms of singular limits of the scaled Navier-Stokes-Fourier system, where some of the characteristic numbers become small or large enough. We discuss the problem in the framework of global-in-time solutions for both the primitive and the target system. © 2010 Springer Basel AG

    Scattering properties for a pair of Schrödinger type operators on cylindrical domains

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    Strong asymptotic completeness is shown for a pair of Schr\"{o}dinger type operators on a cylindrical Lipschitz domain. A key ingredient is a limiting absorption principle valid in a scale of weighted (local) Sobolev spaces with respect to the uniform topology. The results are based on a refined version of Mourre's method within the context of pseudo-selfadjoint operators
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