Mathematics – Functional Analysis
Scientific paper
2002-03-28
J. Funct. Anal. 209 (2004), 367-387
Mathematics
Functional Analysis
23 pages; more typos removed; references updated
Scientific paper
We investigate if, for a locally compact group $G$, the Fourier algebra $A(G)$ is biflat in the sense of quantized Banach homology. A central role in our investigation is played by the notion of an approximate indicator of a closed subgroup of $G$: The Fourier algebra is operator biflat whenever the diagonal in $G \times G$ has an approximate indicator. Although we have been unable to settle the question of whether $A(G)$ is always operator biflat, we show that, for $G = SL(3,C)$, the diagonal in $G \times G$ fails to have an approximate indicator.
Aristov Oleg Yu.
Runde Volker
Spronk Nico
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