Henrik Densing Petersen

most citedL^2-Betti Numbers of Locally Compact Groups

16 citations · 17 across the 2 of their papers we have counts for

collaborators

2 papers

math.GR2015★ 1 cited

Polynomial Cohomology and Polynomial Maps on Nilpotent Groups

David Kyed, Henrik Densing Petersen

We introduce a refined version of group cohomology and relate it to the space of polynomials on the group in question. We show that the polynomial cohomology with trivial coefficie…

math.GR2011★ 16 cited

L^2-Betti Numbers of Locally Compact Groups

Henrik Densing Petersen

We introduce a notion of $L^{2}$ -Betti numbers for locally compact, second countable, unimodular groups. We study the relation to the standard notion of $L^{2}$ -Betti numbers of counta…