FINITE GROUPS WHICH HAVE MANY NORMAL SUBGROUPS
نویسندگان
چکیده
منابع مشابه
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In this paper we prove that a finite group $G$ having at most three conjugacy classes of non-normal non-abelian proper subgroups is always solvable except for $Gcong{rm{A_5}}$, which extends Theorem 3.3 in [Some sufficient conditions on the number of non-abelian subgroups of a finite group to be solvable, Acta Math. Sinica (English Series) 27 (2011) 891--896.]. Moreover, we s...
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ژورنال
عنوان ژورنال: Journal of the Korean Mathematical Society
سال: 2009
ISSN: 0304-9914
DOI: 10.4134/jkms.2009.46.6.1165