25 research outputs found

    The geology, geochemistry and petrology of a number of gold deposits in the southern Appalachians, USA

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    Incl. 3 chartsSIGLEAvailable from British Library Document Supply Centre- DSC:D73022/87 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

    Abelian-by-FC-hypercentral groups

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    A splitting Theorem for FC-hypercentral group G and ZG-module of finite rank is obtained. According to this Theorem, under certain conditions, every extention E of the ZG-module A by the group G is split and all the complements to A in E are conjugate in E.Для FC-гиперцентральной группы G и ZG-модуля конечного ранга получена теорема о расщеплении. Согласно этой теореме при определенных условиях каждое расширение E ZG-модуля A посредством группы G расщепляемо и все дополнения к A в E сопряжены в E

    Groups covered by finitely many cosets or subgroups

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