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A gap in the spectrum of the Neumann–Laplacian on a periodic waveguide - MaRDI portal

A gap in the spectrum of the Neumann–Laplacian on a periodic waveguide (Q2846766)

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scientific article; zbMATH DE number 6204282
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A gap in the spectrum of the Neumann–Laplacian on a periodic waveguide
scientific article; zbMATH DE number 6204282

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    A gap in the spectrum of the Neumann–Laplacian on a periodic waveguide (English)
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    3 September 2013
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    Helmholtz equation
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    periodic waveguide
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    spectral gaps
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    singularly perturbed domains
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