Quasirecognition by prime graph of $C_{n}(4) $, where $ n\geq17 $ is odd

Autor: Somayeh Mosavi, Neda Ahanjideh
Jazyk: English<br />Portuguese
Rok vydání: 2015
Předmět:
Zdroj: Boletim da Sociedade Paranaense de Matemática, Vol 33, Iss 1, Pp 57-65 (2015)
Druh dokumentu: article
ISSN: 0037-8712
2175-1188
DOI: 10.5269/bspm.v33i1.21969
Popis: Let $G$ be a finite group and let $\Gamma(G) $ be the prime graph of $ G$. We assume that $ n\geq 17$ is an odd number. In this paper, we show that if $ \Gamma(G) = \Gamma(C_{n}(4))$, then $ G$ has a unique non-abelian composition factor isomorphic to $C_{n}(4)$. As consequences of our result, $C_{n}(4)$ is quasirecognizable by its spectrum and by prime graph.
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