Geodesic
On groups isospectral to the automorphism group of the second sporadic group of Janko
Sibirskie èlektronnye matematičeskie izvestiâ, Tome 14 (2017), pp. 1011-1016.

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We prove that every finite group having the same set of element orders as $Aut(J_2)$ is isomorphic either to $Aut(J_2)$ or to an extension of a non-trivial $2$-group by $A_8$, or to some soluble group.
Keywords: isospectral groups, sporadic groups of Janko, finite groups.
Mots-clés : Frobenius group 
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A. Kh. Zhurtov; M. Kh. Shermetova. On groups isospectral to the automorphism group of the second sporadic group of Janko. Sibirskie èlektronnye matematičeskie izvestiâ, Tome 14 (2017), pp. 1011-1016. http://geodesic.mathdoc.fr/item/SEMR_2017_14_a29/

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