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A note on the supersolubility of a group with ms-supersoluble factors
A subgroup A of a group G is called seminormal in G , if there exists a subgroup B such that G = A B and AX is a subgroup of G for every subgroup X of B . Let G be a supersoluble group. Then it has an ordered Sylow tower of supersoluble type 1 = G 0 < G 1 < ⋯ < G m = G . If for every i...
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Published in: | Ricerche di matematica 2021-11, Vol.70 (2), p.517-521 |
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Main Author: | |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites |
Online Access: | Get full text |
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Summary: | A subgroup
A
of a group
G
is called
seminormal
in
G
, if there exists a subgroup
B
such that
G
=
A
B
and
AX
is a subgroup of
G
for every subgroup
X
of
B
. Let
G
be a supersoluble group. Then it has an ordered Sylow tower of supersoluble type
1
=
G
0
<
G
1
<
⋯
<
G
m
=
G
. If for every
i
all maximal subgroups of
G
i
/
G
i
-
1
are seminormal in
G
/
G
i
-
1
, then
G
is said to be
ms
-
supersoluble
. In this paper, we proved the supersolubility of a group
G
=
A
B
under condition that
A
and
B
are normal in
G
and
ms
-supersoluble. |
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ISSN: | 0035-5038 1827-3491 |
DOI: | 10.1007/s11587-020-00493-w |