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Sibirsk. Mat. Zh., 2021 Volume 62, Number 2, Pages 466–472 (Mi smj7569)

On the local case in the Aschbacher theorem for symplectic and orthogonal groups

N. Yanga, A. A. Galtbc

a School of Science, Jiangnan University, Wuxi, P. R. China
b Sobolev Institute of Mathematics, Novosibirsk, Russia
c Novosibirsk State University, Novosibirsk, Russia

Abstract: We consider the subgroups $H$ in a symplectic or orthogonal group over a finite field of odd characteristic such that $O_r(H)\neq1$ for some odd prime $r$. We obtain a refinement of the well-known Aschbacher Theorem on subgroups of classical groups for this case.

Keywords: Aschbacher Theorem, symplectic group, orthogonal group, radical $r$-subgroup.

UDC: 512.542

MSC: 35R30

Received: 20.08.2020
Revised: 28.09.2020
Accepted: 09.10.2020

DOI: 10.33048/smzh.2021.62.217


 English version:
Siberian Mathematical Journal, 2021, 62:2, 377–382

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© Steklov Math. Inst. of RAS, 2025