A group G is called a Shunkov group (a conjugate biprimitive finite group) if, for any of its finite subgroups H in the factor group NG(H)/H, every two conjugate elements of prime order generate a finite subgroup. We say that a group is saturated with groups from the set đ if any finite subgroup of the given group is contained in its subgroup isomorphic to some group in đ. We show that a Shunkov group G which is saturated with groups from the set đ possessing specific properties, and contains an involution z with the property that the centralizer CG(z) has only finitely many elements of finite order will have a periodic part isomorphic to one of the groups in đ. In particular, a Shunkov group G that is saturated with finite almost simple groups and contains an involution z with the property that the centralizer CG(z) has only finitely many elements of finite order will have a periodic part isomorphic to a finite almost simple group.
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Dedicated to V. D. Mazurov on the occasion of his 80th birthday
Supported by RFBR, project No. 20-01-00456 (Thm. 2). (N. V. Maslova)
Supported by Russian Science Foundation, project No. 19-71-10017-P (Thm. 1). (A. A. Shlepkin)
Translated from Algebra i Logika, Vol. 62, No. 1, pp. 93-101, January-February, 2023. Russian https://doi.org/10.33048/alglog.2023.62.106.
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Maslova, N.V., Shlepkin, A.A. Shunkov Groups Saturated with Almost Simple Groups. Algebra Logic 62, 66â71 (2023). https://doi.org/10.1007/s10469-023-09725-y
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DOI: https://doi.org/10.1007/s10469-023-09725-y