## Abstract In this note we treat maximal and minimal normal subgroups of a superstable group and prove that these groups are definable under certain conditions. Main tool is a superstable version of Zil'ber's indecomposability theorem. MSC: 03C60.
A Characterisation of Powerfully Embedded Normal Subgroups of ap-Group
โ Scribed by Bruno Kahn
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 124 KB
- Volume
- 188
- Category
- Article
- ISSN
- 0021-8693
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โฆ Synopsis
Let p be a prime number and G be a p-group. A. Lubotzky and A. Mann J. . Algebra 105, 1987, 484แ505 have introduced the notion of a powerfully embedded subgroup of G. Our main result gives a characterisation of those powerfully embedded subgroups which are contained in the Frattini subgroup of G, when p is ลฝ odd. When p s 2, the subgroups characterised have a weaker property than . powerful embedding. This result also yields information on the structure of ''d-maximal'' 2-groups.
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