4 Citations
NEW CRITERIA FOR SOLVABILITY, NILPOTENCY AND OTHER PROPERTIES OF FINITE GROUPS IN TERMS OF THE ORDER ELEMENTS OR SUBGROUPS
- Mathematics
- 2022
. In this survey we shall describe some recent criteria for solvability, nilpotency and other properties of finite groups G , based either on the orders of the elements of G or on the orders of the…
On the sum of the inverses of the element orders in finite groups
- MathematicsCommunications in Algebra
- 2022
Abstract Let G be a finite group. Recently various functions are defined related to the set of order elements of G and using these functions, some interesting criteria for solvability, nilpotency,…
The solvability of a finite group by the sum of powers of element orders
- Mathematics
- 2022
We prove a new criterion for the solvability of the finite groups, depending on the function ψ k ( G ) which is defined as the sum of k -th powers of the element orders of G . We show that our result…
References
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Atlas of finite groups : maximal subgroups and ordinary characters for simple groups
- Mathematics
- 1987
This atlas covers groups from the families of the classification of finite simple groups. Recently updated incorporating corrections
ON THE SUM OF ELEMENT ORDERS OF FINITE ABELIAN GROUPS
- Mathematics
- 2013
Abstract In this note some properties of the sum of element orders of a finite abelian group are studied.
Sums of Element Orders in Finite Groups
- Mathematics
- 2009
Given a finite group G, write ψ(G) to denote the sum of the orders of the elements of G. Our main result is that if C is a cyclic group and G is a noncyclic group of the same order, then ψ(G) < ψ(C).
On the character degree sums
- Mathematics
- 2017
ABSTRACT Let G be a finite group, and T(G) be the sum of all complex irreducible character degrees of G. In this paper, we get the exact lower bound of |G|∕T(G) for a non-r-solvable group G.
ON THE SUM OF ELEMENT ORDERS OF FINITE SIMPLE GROUPS
- Mathematics
- 2013
Let G be a finite group and ψ(G) = ∑g∈Go(g), where o(g) denotes the order of g ∈ G. In this short paper we show that the conjecture of minimality of ψ(G) in simple groups, posed in [J. Algebra Appl.…
Sum of Element Orders of Maximal Subgroups of the Symmetric Group
- Mathematics
- 2012
For a finite group G, let ψ(G) denote the sum of element orders of G. The aim of this article is to show that ψ(H) < ψ(A n ) for every proper subgroup H of the symmetric group of degree n, which is…
ON THE NUMBER OF PRIME ORDER SUBGROUPS OF FINITE GROUPS
- MathematicsJournal of the Australian Mathematical Society
- 2009
Abstract Let G be a finite group and let δ(G) be the number of prime order subgroups of G. We determine the groups G with the property δ(G)≥∣G∣/2−1, extending earlier work of C. T. C. Wall, and we…
The Characterization of PSL(2, q) by Its Element Orders
- Mathematics
- 1994
Abstract We show that the simple groups PSL(2, q), q ≠ 9, are characterized by their element orders.
SUM OF ELEMENT ORDERS ON FINITE GROUPS OF THE SAME ORDER
- Mathematics
- 2011
For a finite group G, let ψ(G) denote the sum of element orders of G. It is known that the maximum value of ψ on the set of groups of order n, where n is a positive integer, will occur at the cyclic…
Second Maximum Sum of Element Orders of Finite Nilpotent Groups
- Mathematics
- 2013
In [1], 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…