Abstract
The paper was withdrawn by the author after its first appearance online, upon learning that the same result as the main theorem of the paper had already been proved by Murai in Characterizations of $p$-nilpotent groups which appeared in Osaka J. Math. 31 (1994), 1-8. The paper has not been included in the printed version of this volume.
Citation
Gabriel Navarro. "[Retraction] On a Theorem of Murai." Osaka J. Math. 54 (4) 689 - 690, October 2017.
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