Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-27T12:12:40.611Z Has data issue: false hasContentIssue false

Non commutative convolution measure algebras with no proper L-ideals

Published online by Cambridge University Press:  17 April 2009

Sahl Fadul Albar
Affiliation:
Department of Mathematical SciencesUmm Al Qura UniversityMakkahSaudi Arabia
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We study non-commutative convolution measure algebras satisfying the condition in the title and having an involution with a non-degenerate finite dimensional *-representation. We show first that the group algebra L1(G) of a locally compact group G satisfies these conditions. Then we show that to a given algebra A with the above conditions there corresponds a locally compact group G such that A is a * and L-subalgebra of M(G) and such that the enveloping C*-algebra of A is *isomorphic to C*(G). Finally we show for certain groups that L1(G) is the only example of such algebras, thus giving a characterisation of L1(G).

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1989

References

[1]Dixmier, J., C*-algebras (North Holland Publishing Co., 1977).Google Scholar
[2]Eymard, P., ‘L'Algebre de Fourier d'un groupe localement Compact’, Bull. Soc. Math. Franc 92 (1964), 181236.CrossRefGoogle Scholar
[3]Hewitt, E. and Ross, K.A., Abstract Harmonic Analysis I (Springer Verlag, 1963).Google Scholar
[4]Mosak, R.D., ‘The L 1 and C*-algebra of groups and their representations’, Trans. Amer. Math. Soc. 163 (1972), 277310.Google Scholar
[5]Taylor, J.L., ‘Non Commutative Convolution Measure algebras’, Pacific I. Math. 31 (1969), 809826.CrossRefGoogle Scholar
[6]Taylor, J.L., ‘Measure algebras’, Trans. Amer. Math. Soc. (1973).Google Scholar
[7]Taylor, J.L., ‘Convolution Measure algebras with group maximal ideal spaces’, Trans. Amer. Math. Soc. 128 (1967), 257263.Google Scholar