A counterexample to a question of Atiyah
نویسنده
چکیده
We prove that there are examples of finitely generated groups Γ together with group ring elements Q ∈ QΓ for which the von Neumann dimension dimLΓ kerQ is irrational, so (in conjunction with other known results) disproving a conjecture of Atiyah.
منابع مشابه
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تاریخ انتشار 2009