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Deformations of group actions

Author(s): David Fisher
Journal: Trans. Amer. Math. Soc. 360 (2008), 491-505.
MSC (2000): Primary 37C85
Posted: July 20, 2007
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Abstract: Let $ G$ be a non-compact real algebraic group and $ \Gamma<G$ a lattice. One purpose of this paper is to show that there is a smooth, volume preserving, mixing action of $ G$ or $ \Gamma$ on a compact manifold which admits a smooth deformation. In fact, we prove a stronger statement by exhibiting large finite dimensional spaces of deformations. We also describe some other, rather special, deformations when $ G=SO(1,n)$.


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Additional Information:

David Fisher
Affiliation: Department of Mathematics, Rawles Hall, Indiana University, Bloomington, Indiana 47405

DOI: 10.1090/S0002-9947-07-04372-3
PII: S 0002-9947(07)04372-3
Received by editor(s): July 5, 2006
Posted: July 20, 2007
Additional Notes: The author was partially supported by NSF grant DMS-0226121 and a PSC-CUNY grant.
Copyright of article: Copyright 2007, American Mathematical Society
The copyright for this article reverts to public domain after 28 years from publication.


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