-essential subgroups of abelian groups. III.
Jindřich Bečvář (1977)
Commentationes Mathematicae Universitatis Carolinae
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Jindřich Bečvář (1977)
Commentationes Mathematicae Universitatis Carolinae
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John Cossey, Stewart Stonehewer (2011)
Rendiconti del Seminario Matematico della Università di Padova
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G. Miller (1915)
Prace Matematyczno-Fizyczne
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A. Ballester-Bolinches, M. D. Pérez-Ramos (1995)
Rendiconti del Seminario Matematico della Università di Padova
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L. M. Ezquerro, M. Gómez-Fernández, X. Soler-Escrivà (2005)
Bollettino dell'Unione Matematica Italiana
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In this paper we prove the following results. Let π be a set of prime numbers and G a finite π-soluble group. Consider U, V ≤ G and such that and . Suppose also is a Hall π-sub-group of some S-permutable subgroup of G. Then and . Therefore,the set of all S-permutably embedded subgroups of a soluble group G into which a given Hall system Σ reduces is a sublattice of the lattice of all Σ-permutable subgroups of G. Moreover any two subgroups of this sublattice of coprimeorders...
Leonid Kurdachenko, Alexsandr Pypka, Igor Subbotin (2010)
Open Mathematics
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New results on tight connections among pronormal, abnormal and contranormal subgroups of a group have been established. In particular, new characteristics of pronormal and abnormal subgroups have been obtained.
Dieter Held (1988)
Rendiconti del Seminario Matematico della Università di Padova
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Yong Xu, Xianhua Li (2016)
Open Mathematics
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We introduce a new subgroup embedding property of finite groups called CSQ-normality of subgroups. Using this subgroup property, we determine the structure of finite groups with some CSQ-normal subgroups of Sylow subgroups. As an application of our results, some recent results are generalized.