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Free symmetric group algebras in division rings generated by poly-orderable groups (1206.7013v1)
Published 29 Jun 2012 in math.RA
Abstract: We show that the canonical involution on a nonabelian poly-orderable group G extends to the Hughes-free division ring of fractions D of the group algebra k[G] of G over a field k and that, with respect to this involution, D contains a pair of symmetric elements freely generating a free group subalgebra of D over k.