Conjugacy of Maximal and Submaximal 픛-Subgroups

W. Guo, D. O. Revin

Результат исследования: Научные публикации в периодических изданияхстатья

1 Цитирования (Scopus)

Аннотация

Let 픛 be a class of finite groups closed under taking subgroups, homomorphic images, and extensions. Following H. Wielandt, we call a subgroup H of a finite group G a submaximal 픛-subgroup if there exists an isomorpic embedding ϕ: G ↪ G* of the group G into some finite group G* under which Gϕ is subnormal in G* and Hϕ = K ∩Gϕ for some maximal 픛-subgroup K of G*. We discuss the following question formulated by Wielandt: Is it always the case that all submaximal 픛-subgroups are conjugate in a finite group G in which all maximal 픛-subgroups are conjugate? This question strengthens Wielandt’s known problem of closedness for the class of [InlineMediaObject not available: see fulltext.]-groups under extensions, which was solved some time ago. We prove that it is sufficient to answer the question mentioned for the case where G is a simple group.

Язык оригиналаанглийский
Страницы (с-по)169-181
Число страниц13
ЖурналAlgebra and Logic
Том57
Номер выпуска3
DOI
СостояниеОпубликовано - 1 июл 2018

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