Abstract
As an extension of Shi and Zhang's 2011 article [4], we prove that any finite group having at most 23 non-normal non-nilpotent proper subgroups is solvable except for G ≅ A 5 or SL(2, 5), and any finite group having at most three conjugacy classes of non-normal non-nilpotent proper subgroups is solvable except for G ≅ A 5 or SL(2, 5).
Original language | English |
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Journal | Communications in Algebra |
Volume | 42 |
Issue number | 10 |
Pages (from-to) | 4248-4252 |
ISSN | 0092-7872 |
DOIs | |
Publication status | Published - 2014 |
Keywords
- Conjugacy classes
- Non-normal
- Non-nilpotent subgroup
- Solvable group