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20012024
most citedPrincipal noncommutative torus bundles

38 citations · 91 across the 10 of their papers we have counts for

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math.KT2024★ 22 cited

Quantitative index, Novikov conjecture and coarse decomposability

Hervé Oyono-Oyono, Guoliang Yu

We define for families of finite metric spaces quantitative assembly map estimates that take into account propagation phenomena for pseudo-differential calculus. We relate these es…

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…

math.KT2008★ 2 cited

Fibrations with noncommutative fibers

Siegfried Echterhoff, Ryszard Nest, Herve Oyono-Oyono

We study an analogue of fibrations of topological spaces with the homotopy lifting property in the setting of C*-algebra bundles. We then derive an analogue of the Leray-Serre spec…

math.KT2008★ 38 cited

Principal noncommutative torus bundles

Siegfried Echterhoff, Ryszard Nest, Herve Oyono-Oyono

In this paper we study continuous bundles of C*-algebras which are non-commutative analogues of principal torus bundles. We show that all such bundles, although in general being ve…

math.KT2001★ 15 cited

Gap-labelling for quasi-crystals (proving a conjecture by J. Bellissard)

Moulay-Tahar Benameur, Herve Oyono-Oyono

In the present paper, we give a proof of the gap-labelling conjecture for quasi-crystals. The main tools are the measured index theorem for laminations and a naturality of the long…