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Colbois, Bruno
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Colbois, Bruno
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Professeur ordinaire
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Bruno.Colbois@unine.ch
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- PublicationMétadonnées seulementCapacité et inégalité de Faber-Krahn dans Rn(2006-4-18)
;Bertrand, JérômeIn this paper, we define a new capacity which allows us to control the behaviour of the Dirichlet spectrum of a compact Riemannian manifold with boundary, with "small" subsets (which may intersect the boundary) removed. This result generalises a classical result of Rauch and Taylor ("the crushed ice theorem"). In the second part, we show that the Dirichlet spectrum of a sequence of bounded Euclidean domains converges to the spectrum of a ball with the same volume, if the first eigenvalue of these domains converges to the first eigenvalue of a ball.