Abstract
The notion of a Gaschütz system of a finite soluble group was introduced by S. F. Kamornikov in 2008 (this is a set of complements of crowns of pairwise nonisomorphic non-Frattini factors of a chief series of the group). In the present paper, properties of Gaschütz systems are investigated. In particular, we calculate the number of Gaschütz systems in a finite soluble group and prove their conjugacy, obtain a connection between \( \mathfrak{N} \)-prefrattini subgroups and normalizers of Gaschütz systems, and investigate factorizations of the normalizer of a Gaschütz system.
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Translated from Fundamentalnaya i Prikladnaya Matematika, Vol. 14, No. 8, pp. 129–136, 2008.
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Kamornikov, S.F., Shemetkov, L.A. On the normalizer of a Gaschütz system of a finite soluble group. J Math Sci 166, 655–660 (2010). https://doi.org/10.1007/s10958-010-9880-6
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DOI: https://doi.org/10.1007/s10958-010-9880-6