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The inverse limit of some free algebras

Published online by Cambridge University Press:  09 April 2009

A. L. Allen
Affiliation:
The University Canterbury, Kent, England
S. Moran
Affiliation:
The University Papua and New Guinea
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Let Ω[x1, x2, …, xn] denote the algebra of polynomials in variables x1, x2, …, xn with coefficients from a fixed field Ω of characteristic zero, where n = 1, 2,…. There exists a natural projection which maps xn onto 0 and all the other variables onto themselves, for n = 1, 2, …. This enables one to construct the corresponding inverse limit which we here denote by Ω[x]. The algebra Ω[x] has a natural degree function defined on it.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1973

References

[1]Fuchs, L., Abelian groups (Hungarian Academy of Sciences, Budapest, 1958).Google Scholar
[2]Hall, M., ‘A basis for free Lie rings and higher commutators in free groups’, Proc. Amer. Math. Soc. 1 (1950), 575581.CrossRefGoogle Scholar
[3]Higman, G., ‘On a problem of Takahasi’, J. London Math. Soc. 28 (1953), 250252.CrossRefGoogle Scholar
[4]Moran, S., ‘Unrestricted nilpotent products’, Acta Math. 108 (1962), 6188.CrossRefGoogle Scholar
[5]Širšov, A. I., ‘Subalgebras of free Lie algebras’, Mat. Sb. 33 (75) (1953), 441452.Google Scholar
[6]Witt, E., ‘Übei freie Ringe und ihre Unterringe’, Math. Zeit. 58 (1953), 113114.CrossRefGoogle Scholar
[7]Witt, E., ‘Die Unterringe der freien Lieschen Ringe’, Math. Zeit. 64 (1956), 195216.CrossRefGoogle Scholar