Abstract
In [Citation1], the authors proved that the maximum sum of element orders on finite groups of the same order occurs in cyclic group. In this paper we obtain the structure of groups having maximum sum of element orders on noncyclic nilpotent group of the same order.
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2000 Mathematics Subject Classification:
ACKNOWLEDGMENT
The author is indebted to the referee for his/her careful reading and valuable comments.
Notes
Communicated by A. Turull.