Displaying similar documents to “The resolvent for Laplace-type operators on asymptotically conic spaces”

Estimates on the number of scattering poles near the real axis for strictly convex obstacles

Johannes Sjöstrand, Maciej Zworski (1993)

Annales de l'institut Fourier

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For the Dirichlet Laplacian in the exterior of a strictly convex obstacle, we show that the number of scattering poles of modulus r in a small angle θ near the real axis, can be estimated by Const θ 3 / 2 r n for r sufficiently large depending on θ . Here n is the dimension.

Resonances for strictly convex obstacles

Johannes Sjöstrand (1997-1998)

Séminaire Équations aux dérivées partielles

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On considère le problème de Dirichlet à l’éxtérieur d’un obstacle strictement convexe borné à bord C . Sous une hypothèse sur la variation de la courbure, on obtient à un facteur 1 + o ( 1 ) près, le nombre de résonances de module r , associées à la première racine de la fonction d’Airy.

Propagation of singularities in many-body scattering in the presence of bound states

András Vasy (1999)

Journées équations aux dérivées partielles

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In these lecture notes we describe the propagation of singularities of tempered distributional solutions u 𝒮 ' of ( H - λ ) u = 0 , where H is a many-body hamiltonian H = Δ + V , Δ 0 , V = a V a , and λ is not a threshold of H , under the assumption that the inter-particle (e.g. two-body) interactions V a are real-valued polyhomogeneous symbols of order - 1 (e.g. Coulomb-type with the singularity at the origin removed). Here the term “singularity” provides a microlocal description of the lack of decay at infinity. Our result is...