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Let be a finite group and be a subgroup of . Then is called a --subgroup of , if covers or avoids every -chief factor of . A subgroup of is said to be an -subgroup of , if , where is a --subgroup of contained in . In this paper, we investigate the structure of under the assumption that certain subgroups are -subgroups of , and characterization of -nilpotency and other results are obtained.

生成讲解博客的中文版本

生成AI智能校验的中文版本