On Thompson’s conjecture for alternating and symmetric groups of degree greater than 1361


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Abstract

Let G be a finite group G, and let N(G) be the set of sizes of its conjugacy classes. It is shown that, if N(G) equals N(Altn) or N(Symn), where n > 1361, then G has a composition factor isomorphic to an alternating group Altm with mn and the interval (m, n] contains no primes.

About the authors

I. B. Gorshkov

Krasovskii Institute of Mathematics and Mechanics

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Email: Ilygor8@gmail.com
Russian Federation, ul. S. Kovalevskoi 16, Yekaterinburg, 620990

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