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Estimating norms in \(C^*\)-algebras of discrete groups. (English) Zbl 0337.22008


MSC:

22D25 \(C^*\)-algebras and \(W^*\)-algebras in relation to group representations
46L05 General theory of \(C^*\)-algebras
47Gxx Integral, integro-differential, and pseudodifferential operators
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References:

[1] Akemann, Ch. A., Ostrand, Ph. A.: Computing norms in groupC*-algebras. Preprint
[2] Berg, C., Christensen, J. P. R.: On the relation between amenability of locally compact groups and the norms of convolution operators. Math. Ann.228, 149-153 (1974) · Zbl 0269.43002 · doi:10.1007/BF01432382
[3] Berg, C., Christensen, J. P. R.: Sur la norme des opérateurs de convolution. Inventiones math.23, 173-178 (1974) · Zbl 0267.22007 · doi:10.1007/BF01405169
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[8] Leinert, M.: Faltungsoperatoren auf gewissen diskreten Gruppen. Studia Mathematica T. LII, 149-158 (1974) · Zbl 0262.43009
[9] Leptin, H.: On a certain invariant of a locally compact group. Bull. Amer. Math. Soc.72, 870-874 (1966) · Zbl 0171.34004 · doi:10.1090/S0002-9904-1966-11594-X
[10] Leptin, H.: On locally compact groups with invariant means. Proc. Amer. Math. Soc.19, 489-494 (1968) · Zbl 0155.05702 · doi:10.1090/S0002-9939-1968-0239001-7
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