P. Nowak

activity

20042020

ℓ_{p}

-spaces and a conjecture of Dranishnikov

19 citations · 78 across the 17 of their papers we have counts for

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2 papers · 1 filter

math.OA2020

Higher Kazhdan projections, $ℓ_{2}$ -Betti numbers and Baum-Connes conjectures

Kang Li, Piotr W. Nowak, Sanaz Pooya

We introduce higher-dimensional analogs of Kazhdan projections in matrix algebras over group $C^{*}$ -algebras and Roe algebras. These projections are constructed in the framework of…

math.GR2020

Group algebra criteria for vanishing of cohomology

Uri Bader, Piotr W. Nowak

Given a group satisfying sufficient finiteness properties, we discuss a group algebra criterion for vanishing of all its cohomology groups with unitary coefficients in a certain de…

Higher Kazhdan projections, ℓ2​-Betti numbers and Baum-Connes conjectures

Group algebra criteria for vanishing of cohomology

Higher Kazhdan projections, $ℓ_{2}$ -Betti numbers and Baum-Connes conjectures