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Q3861871 - MaRDI portal

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scientific article

    Statements

    author
    Bernard Helffer
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    publication date
    1980
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    zbMATH Keywords
    mixed boundary value problems
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    pseudo differential and Fourier integral operators
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    grazing and gliding rays
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    survey
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    propagation of singularities
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    wave front set
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    Identifiers

    Mathematics Subject Classification ID
    35S05
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    35F05
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    35G05
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    zbMATH DE Number
    3663706
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