On Ozawa kernels
نویسندگان
چکیده
منابع مشابه
Exactness of Free and Amenable Groups by the Construction of Ozawa Kernels
We construct specific examples of Ozawa kernels for free and amenable groups. We deduce that these groups satisfy Property O and thus are exact. This gives us an alternative proof that these groups are exact, which emphasizes the link between the geometric properties of a group and exactness of its reduced C-algebra .
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ژورنال
عنوان ژورنال: Journal of Functional Analysis
سال: 2007
ISSN: 0022-1236
DOI: 10.1016/j.jfa.2007.05.021