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Q3430991 - MaRDI portal

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scientific article
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English
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scientific article

    Statements

    publication date
    5 April 2007
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    zbMATH Keywords
    fuzzy sets
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    rough sets
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    lower approximations
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    upper approximations
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    polygroups
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    normal subpolygroups
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    factor polygroups
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    author
    Bijan Davvaz
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    Identifiers

    Mathematics Subject Classification ID
    20N20
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    20N25
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    20E07
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    zbMATH DE Number
    5140703
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