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Discrete spectra criteria for singular differential operators with middle terms - MaRDI portal

Discrete spectra criteria for singular differential operators with middle terms (Q4052503)

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Discrete spectra criteria for singular differential operators with middle terms
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    title
    Discrete spectra criteria for singular differential operators with middle terms (English)
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    author
    Roger T. Lewis
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    Don B. Hinton
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    publication date
    1975
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    Mathematics Subject Classification ID
    34L99
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    34B20
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    47E05
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    zbMATH DE Number
    3467588
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