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Leafwise homotopy equivalences and leafwise Sobolov spaces

Published online by Cambridge University Press:  21 November 2011

Moulay-Tahar Benameur
Affiliation:
Université de Metz, ISGMP, [email protected]
James L. Heitsch
Affiliation:
Mathematics, Statistics, and Computer Science, University of Illinois at Chicago, [email protected] Mathematics, Northwestern University, [email protected]
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Abstract

We prove that a leafwise homotopy equivalence between compact foliated manifolds induces a well defined bounded operator between all Sobolov spaces of leafwise (for the natural foliations of the graphs of the original foliations) differential forms with coefficients in a leafwise flat bundle. We further prove that the associated map on the leafwise reduced L2 cohomology is an isomorphism which only depends on the leafwise homotopy class of the homotopy equivalence.

Type
Research Article
Copyright
Copyright © ISOPP 2011

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References

BH04.Benameur, M.-T. and Heitsch, J. L., Index theory and non-commutative geometry. I. Higher families index theory. K-Theory 33 (2004), 151183. Corrigendum K-Theory 36 (2005), 397–402.CrossRefGoogle Scholar
BH08.Benameur, M-T. and Heitsch., J. L.Index theory and Non-Commutative Geometry II. Dirac Operators and Index Bundles, J. of K-Theory 1 (2008) 305356.CrossRefGoogle Scholar
BH11.Benameur, M.-T. and Heitsch, J. L., The Twisted Higher Harmonic Signature for Foliations, J. Differential Geom. 87 (2011) 389468.CrossRefGoogle Scholar
D77.Dodziuk, J.. de Rham-Hodge theory for L2-cohomology of infinite coverings, Topology 16 (1977) 157165.CrossRefGoogle Scholar
GKS88.Gol’dshtein, V. M., Kuz’minov, V. I. and Shvedov, I. A.. The de Rham isomorphism of the Lp- cohomology of noncompact Riemannian manifolds. Sibirsk. Mat. Zh. 29 (1988) 34-44. Translation in Siberian Math. J. 29 (1988) 190197.CrossRefGoogle Scholar
Ha80.Haefliger, A.. Some remarks on foliations with minimal leaves, J. Diff. Geo. 15 (1980) 269284.Google Scholar
HL90.Heitsch, J. L. and Lazarov, C.. A Lefschetz theorem for foliated manifolds, Topology 29 (1990) 127162.CrossRefGoogle Scholar
HL91.Heitsch, J. L. and Lazarov, C.. Homotopy invariance of foliation Betti numbers, Invent. Math. 104 (1991) 321347.CrossRefGoogle Scholar
HiS92.Hilsum, M. and Skandalis, G.. Invariance par homotopie de la signature à coefficients dans un fibré presque plat, J. Reine Angew. Math. 423 (1992) 7399.Google Scholar