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Grothendieck groups of twisted free associative algebras

Published online by Cambridge University Press:  18 May 2009

Koo-Guan Choo
Affiliation:
Department of Pure Mathematics, University of Sydney, Sydney, N.S.W. 2006, Australia
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Let R be an associative ring with identity, X a set of noncommuting variables, = {αx} xX a set of automorphisms αx of R and R {X} the -twisted free associative algebra on X over R. Let Y be another set of noncommuting variables, ℬ = {βy}y∈Y a set of automorphisms βy of R {X} and S = (R{X}) {Y} the ℬ-twisted free associative algebra on Y over R{X}. Next, let X1 be a set of noncommuting variables, for each l = 1,2,…. We form the free associative algebra S1 = S{X1}on Xl over S and inductively, we form the free associative algebra Sl+1 = Sl{Xl+1} on Xl+1 over Sl, l = 1,2,….

Type
Research Article
Copyright
Copyright © Glasgow Mathematical Journal Trust 1977

References

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