-essential subgroups of abelian groups. III.
Jindřich Bečvář (1977)
Commentationes Mathematicae Universitatis Carolinae
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Displaying similar documents to “The lattice of solid -subgroups of a retractable group”
-essential subgroups of abelian groups. III.
Groups with Decomposable Set of Quasinormal Subgroups
de Falco, M., de Giovanni, F. (2001)
Serdica Mathematical Journal
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A subgroup H of a group G is said to be quasinormal if HX = XH for all subgroups X of G. In this article groups are characterized for which the partially ordered set of quasinormal subgroups is decomposable.
-normally embedded subgroups of finite soluble groups
A. Ballester-Bolinches, M. D. Pérez-Ramos (1995)
Rendiconti del Seminario Matematico della Università di Padova
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On some soluble groups in which -subgroups form a lattice
Leonid A. Kurdachenko, Igor Ya. Subbotin (2007)
Commentationes Mathematicae Universitatis Carolinae
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The article is dedicated to groups in which the set of abnormal and normal subgroups (-subgroups) forms a lattice. A complete description of these groups under the additional restriction that every counternormal subgroup is abnormal is obtained.