Mathematics – Operator Algebras
Scientific paper
2008-04-02
Mathematics
Operator Algebras
4 pages
Scientific paper
We prove that the group-measure-space von Neumann algebra $L^\infty(T^2)
\rtimes SL(2,Z)$ is solid. The proof uses topological amenability of the action
of $SL(2,Z)$ on the Higson corona of $Z^2$.
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