Abstract
In this note, global information about a finite group is obtained by assuming that certain subgroups of some given order are S-semipermutable. Recall that a subgroup H of a finite group G is said to be S-semipermutable if H permutes with all Sylow subgroups of G of order coprime to \({\lvert H\rvert}\). We prove that for a fixed prime p, a given Sylow p-subgroup P of a finite group G, and a power d of p dividing \({\lvert G\rvert}\) such that \({1\le d < \lvert P\rvert}\), if \({H\,{\cap}\, O^p(G)}\) is S-semipermutable in \({O^p(G)}\) for all normal subgroups H of P with \({\lvert H\rvert=d}\), then either G is p-supersoluble or else \({\lvert P\,{\cap}\, {O^p(G)}\rvert > d}\). This extends the main result of Guo and Isaacs in (Arch. Math. 105:215–222 2015). We derive some theorems that extend some known results concerning S-semipermutable subgroups.
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Ballester-Bolinches, A., Esteban-Romero, R. & Qiao, S. A note on a result of Guo and Isaacs about p-supersolubility of finite groups. Arch. Math. 106, 501–506 (2016). https://doi.org/10.1007/s00013-016-0901-7
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DOI: https://doi.org/10.1007/s00013-016-0901-7