Spectral concentration for the Laplace operator in the exterior of a resonator (Q3759430)

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Spectral concentration for the Laplace operator in the exterior of a resonator
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    Spectral concentration for the Laplace operator in the exterior of a resonator (English)
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    1985
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    Laplace operator
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    Dirichlet problem
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    self-adjoint operator
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    exterior domain
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    channel
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    purely continuous spectrum
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    discrete spectrum
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    spectral concentration
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