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弱ST-群的一个充要条件(英)

, PP. 628-631

Keywords: 弱ST-群,PST-群,ST-群,超可解群

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Abstract:

研究有限群的广义正规子群性质的传递性一直是有限群论重要的课题之一,而且获得了许多有意义的研究结果.若群G中s-置换性具有传递关系,则称G为PST-群.若群G的子群H与G的满足条件(p,|H|)=1的每个Sylowp-子群可置换,则称H在G中s-半正规.称群G为弱ST-群,若G的每个次正规子群都在G中s-半正规.给出有限群G为可解弱ST-群当且仅当G为可解PST-群,并且证明了在有限可解群中可解弱ST-性质是子群遗传的.

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