Normalizers of Elementary Overgroups of Ep(2, A)


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Abstract

Let A be an involution ring, e1, . . . , en be a full system of Hermitian idempotents in A, let every ei generate A as a two-sided ideal, and 2 ∈ A. In this paper, the normalizers of the groups Ep(2,A) · E(2,A, I) are calculated under natural assumptions on A, where Ep(2,A) denotes the elementary symplectic group, E(2,A, I) stands for the elementary subgroup of level I.

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E. Yu. Voronetsky

St. Petersburg State University

Author for correspondence.
Email: VoronetckiiEgor@yandex.ru
Russian Federation, St. Petersburg

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