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On groups whose conjugacy class sizes are not divisible by each other Full article

Journal Труды Института математики и механики УрО РАН (Trudy Instituta Matematiki i Mekhaniki UrO RAN)
ISSN: 0134-4889 , E-ISSN: 2658-4786
Output data Year: 2025, Volume: 31, Number: 4, Pages: 300–308 Pages count : DOI: 10.21538/0134-4889-2025-31-4-300-308
Tags prime graph components, finite-groups
Authors Yang Nanying 1 , Gorshkov Ilya 2,3
Affiliations
1 Jiangnan Univ, Sch Sci, Wuxi 214122, Peoples R China
2 Sobolev Institute of Mathematics
3 Siberian Federal University

Funding (1)

1 Russian Science Foundation 24-41-10004

Abstract: Let G be a finite group and N(G) be the set of its conjugacy class sizes excluding 1. Let us define a directed graph F(G), the set of vertices of this graph is N(G) and the vertices x and y are connected by an arc from x to y if x divides y and N(G) does not contain a number z different from x and y such that x divides z and z divides y. We will call the graph F(G) the conjugate graph of the group G. In this work, we will study finite groups whose conjugate graph is a set of isolated vertices.
Cite: Yang N. , Gorshkov I.
On groups whose conjugacy class sizes are not divisible by each other
Труды Института математики и механики УрО РАН (Trudy Instituta Matematiki i Mekhaniki UrO RAN). 2025. V.31. N4. P.300–308. DOI: 10.21538/0134-4889-2025-31-4-300-308 WOS
Dates:
Published print: Nov 25, 2025
Published online: Nov 25, 2025
Identifiers:
Web of science: WOS:001671047000022
Citing: Пока нет цитирований
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