Classes of finite groups with generalized subnormal cyclic primary subgroups
We study the properties of the classes ν π ℌ ( ν π * ℌ) of finite groups whose all cyclic primary π-subgroups are ℌ-subnormal (respectively, K-ℌ-subnormal) for a set of primes π and a hereditary homomorph ℌ. It is established that is a hereditary saturated formation if is a hereditary saturated form...
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Published in | Siberian mathematical journal Vol. 55; no. 6; pp. 1105 - 1115 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
Moscow
Pleiades Publishing
01.11.2014
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Subjects | |
Online Access | Get full text |
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Summary: | We study the properties of the classes
ν
π
ℌ (
ν
π
*
ℌ) of finite groups whose all cyclic primary π-subgroups are ℌ-subnormal (respectively, K-ℌ-subnormal) for a set of primes π and a hereditary homomorph ℌ. It is established that
is a hereditary saturated formation if
is a hereditary saturated formation. We in particular obtain some new criteria for the
p
-nilpotency and
ϕ
-dispersivity of finite groups. A characterization of formations with Shemetkov property is obtained in the class of all finite soluble groups. |
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ISSN: | 0037-4466 1573-9260 |
DOI: | 10.1134/S0037446614060135 |