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Finite 2-groups whose nonnormal subgroups have orders at most 23 |
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| Authors: | Qinhai Zhang Meijuan Su |
| Affiliation: | 1. Department of Mathematics, Shanxi Normal University, Linfen, 041004, China |
| Abstract: | In this paper, we classify finite 2-groups all of whose nonnormal subgroups have orders at most 23. Together with a known result, we completely solved Problem 2279 proposed by Y. Berkovich and Z. Janko in Groups of Prime Power Order, Vol. 3. |
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