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Seyed Hassan Alavi

Seyed Hassan Alavi

Academic rank: Professor
ORCID: https://orcid.org/0000-0002-6442-2507
Education: PhD.
ScopusId: 7005887407
HIndex: 0/00
Faculty: Faculty of Science
Address: Department of Mathematics, Faculty of Science, Bu-Ali Sina University, Hamedan, Iran
Phone:

Research

Title
GROUPS WITH THE SAME CHARACTER DEGREES AS SPORADIC ALMOST SIMPLE GROUPS
Type
JournalPaper
Keywords
character degrees, almost simple groups, sporadic simple groups, Huppert’s conjecture.
Year
2016
Journal BULLETIN OF THE AUSTRALIAN MATHEMATICAL SOCIETY
DOI
Researchers Seyed Hassan Alavi ، Ashraf Daneshkhah ،

Abstract

Let G be a finite group and cd(G) denote the set of complex irreducible character degrees of G. We prove that if G is a finite group and H is an almost simple group whose socle is a sporadic simple group H0 and such that cd(G) = cd(H), then G′ H0 and there exists an abelian subgroup A of G such that G/A is isomorphic to H. In view of Huppert’s conjecture, we also provide some examples to show that G is not necessarily a direct product of A and H, so that we cannot extend the conjecture to almost simple groups.