Sum of the Products of the Orders of Two Distinct Elements in Finite Groups |
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Authors: | S M Jafarian Amiri Mohsen Amiri |
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Institution: | 1. Department of Mathematics, Faculty of Sciences , University of Zanjan , Zanjan , Iran sm_jafarian@znu.ac.ir;3. Department of Mathematics, Faculty of Sciences , University of Zanjan , Zanjan , Iran |
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Abstract: | Let G be a finite group. Then we denote ψ(G) the sum of element orders in G. In 1
Amiri , H. ,
Jafarian Amiri , S. M. ,
Isaacs , I. M. ( 2009 ). Sums of element orders in finite groups . Comm. Algebra 37 ( 9 ): 2978 – 2980 .Taylor &; Francis Online], Web of Science ®] , Google Scholar]] it is proved that if G is a non-cyclic group of order n, then ψ(G) < ψ(C n ), where C n is the cyclic group of order n. Here we generalize and improve this result, and also we give an application of this improvement. |
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Keywords: | Element orders Finite group |
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