activity
19972023
most citedApproximating L2-invariants, and the Atiyah conjecture

116 citations · 1.7k across the 92 of their papers we have counts for

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Showing 2009 · math.KTShow all

5 papers · 2 filters

math.KT2009★ 27 cited

Hodge Theory on Metric Spaces

Laurent Bartholdi, Thomas Schick, Nat Smale +2

Hodge theory is a beautiful synthesis of geometry, topology, and analysis, which has been developed in the setting of Riemannian manifolds. On the other hand, spaces of images, whi…

math.KT2009★ 13 cited

A Geometric Description of Equivariant K-Homology for Proper Actions

Paul Baum, Nigel Higson, Thomas Schick

Let G be a discrete group and let X be a G-finite, proper G-CW-complex. We prove that Kasparov's equivariant K-homology groups KK^G(C_0(X),\C) are isomorphic to the geometric equiv…

math.KT2009★ 14 cited

Differential orbifold K-Theory

Ulrich Bunke, Thomas Schick

We construct differential equivariant K-theory of representable smooth orbifolds as a ring valued functor with the usual properties of a differential extension of a cohomology theo…

math.KT2009★ 8 cited

Spaces with vanishing $l\sp 2$-homology and their fundamental groups (after Farber and Weinberger)

Nigel Higson, John Roe, Thomas Schick

The "zero in the spectrum conjecture" asserted (in its strongest form) that for any manifold M zero should be in the l2-spectrum of the Laplacian (on forms) of the universal coveri…

math.KT2009★ 11 cited

Equivariant geometric K-homology for compact Lie group actions

Paul Baum, Herve Oyono-Oyono, Thomas Schick +1

Let G be a compact Lie-group, X a compact G-CW-complex. We define equivariant geometric K-homology groups K^G_*(X), using an obvious equivariant version of the (M,E,f)-picture of B…