학술논문
An example of a non-amenable dynamical system which is boundary amenable
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Working Paper
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Abstract
It is shown that the action of ${\rm SL}(3,\mathbb{Z})$ on the Stone-\u{C}ech boundary of ${\rm SL}(3,\mathbb{Z}) / {\rm SL}(2,\mathbb{Z}) $ is amenable. This confirms a prediction by Bekka and Kalantar.
Comment: Title changed; other minor changes, mainly in the exposition. The results are unchanged. Final version, to appear in Proc. Amer. Math. Soc
Comment: Title changed; other minor changes, mainly in the exposition. The results are unchanged. Final version, to appear in Proc. Amer. Math. Soc