For any partition 𝜎 of the set ℙ of all primes, it is proved that if every complete Hall set of type 𝜎 for a finite 3'-group G is reducible into a certain subgroup H of G, then H is 𝜎-subnormal in G.
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Translated from Ukrains’kyi Matematychnyi Zhurnal, Vol. 72, No. 6, pp. 806–811, June, 2020. Ukrainian DOI: 10.37863/umzh.v72i6.1037.
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Kamornikov, S.F., Tyutyanov, V.N. On 𝜎-Subnormal Subgroups of Finite 3'-Groups. Ukr Math J 72, 935–941 (2020). https://doi.org/10.1007/s11253-020-01833-7
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DOI: https://doi.org/10.1007/s11253-020-01833-7