Rigidity of higher rank abelian cocycles with values in diffeomorphism groups |
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Authors: | A Katok V Ni?ic? |
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Institution: | (1) Department of Mathematics, Pennsylvania State University, University Park, PA 16802, USA;(2) Department of Mathematics, West Chester University, 323 Anderson Hall, West Chester, PA 19383, USA;(3) Institute of Mathematics of the Romanian Academy, P.O. Box 1–764, Bucharest, 70700, Romania |
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Abstract: | We consider cocycles over certain hyperbolic actions, , and show rigidity properties for cocycles with values in a Lie group or a diffeomorphism group, which are close to identity
on a set of generators, and are sufficiently smooth. The actions we consider are Cartan actions of or , for , and Γ torsion free cocompact lattice. The results in this paper rely on a technique developed recently by D. Damjanović
and A. Katok.
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Keywords: | Rigidity Cocycle Cohomological equation Higher-rank abelian actions Diffeomorphism groups Partially hyperbolic diffeomorphism Cartan actions |
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