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Displaying similar documents to “Some results on the recognizability of the linear groups over the binary field”

A characterization property of the simple group PSL 4 ( 5 ) by the set of its element orders

Mohammad Reza Darafsheh, Yaghoub Farjami, Abdollah Sadrudini (2007)

Archivum Mathematicum

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Let ω ( G ) denote the set of element orders of a finite group G . If H is a finite non-abelian simple group and ω ( H ) = ω ( G ) implies G contains a unique non-abelian composition factor isomorphic to H , then G is called quasirecognizable by the set of its element orders. In this paper we will prove that the group P S L 4 ( 5 ) is quasirecognizable.

A characterization of C 2 ( q ) where q > 5

Ali Iranmanesh, Behrooz Khosravi (2002)

Commentationes Mathematicae Universitatis Carolinae

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The order of every finite group G can be expressed as a product of coprime positive integers m 1 , ⋯ , m t such that π ( m i ) is a connected component of the prime graph of G . The integers m 1 , ⋯ , m t are called the order components of G . Some non-abelian simple groups are known to be uniquely determined by their order components. As the main result of this paper, we show that the projective symplectic groups C 2 ( q ) where q > 5 are also uniquely determined by their order components. As corollaries of this result, the validities...