Abstract
We classify finite p-groups all of whose nonnormal subgroups have orders at most p 3, p odd prime. 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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Zhang, Q., Li, X. & Su, M. Finite p-groups whose nonnormal subgroups have orders at most p 3 . Front. Math. China 9, 1169–1194 (2014). https://doi.org/10.1007/s11464-014-0389-z
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DOI: https://doi.org/10.1007/s11464-014-0389-z