Vol. 227, No. 2, 2006

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Inversion invariant additive subgroups of division rings

Daniel Goldstein, Robert M. Guralnick, Lance Small and Efim Zelmanov

Vol. 227 (2006), No. 2, 287–294
Abstract

We characterize the inversion invariant additive subgroups of any field, and, more generally, those of a division ring (apart from division rings of characteristic 2). We also show how a classical identity of Hua provides a bridge between this problem and Jordan algebras.

Keywords
Jordan algebra, Clifford algebra, Jordan triple system
Mathematical Subject Classification 2000
Primary: 17C10, 17A35, 12E99
Milestones
Received: 13 January 2005
Accepted: 19 January 2005
Published: 1 October 2006
Authors
Daniel Goldstein
Center for Communications Research
San Diego, CA 92121-1969
United States
Robert M. Guralnick
Department of Mathematics
University of Southern California
3620 S. Vermont Ave.
Los Angeles, CA 90089-2532
United States
Lance Small
Department of Mathematics
University of California San Diego
La Jolla, CA 92093-0112
United States
Efim Zelmanov
Department of Mathematics
University of California San Diego
La Jolla, CA 92093-0112
United States