Abstract
Considering two subgroups A and B of a group G and ⊘ ≠ X ⊆ G, we say that A is X-permutable with B if AB x = B x A for some element x ∈ X. We use this concept to give new characterizations of the classes of solvable, supersolvable, and nilpotent finite groups.
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Translated from Sibirskiĭ Matematicheskiĭ Zhurnal, Vol. 48, No. 4, pp. 742–759, July–August, 2007.
Original Russian Text Copyright © 2007 Guo W., Skiba A. N., and Shum K. P.
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Guo, W., Shum, K.P. & Skiba, A.N. X-quasinormal subgroups. Sib Math J 48, 593–605 (2007). https://doi.org/10.1007/s11202-007-0061-x
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DOI: https://doi.org/10.1007/s11202-007-0061-x