Abstract
We prove that if a contact manifold admits an exact filling, then every local contactomorphism isotopic to the identity admits a translated point in the interior of its support, in the sense of Sandon [Internat. J. Math. 23 (2012), 1250042]. In addition, we prove that if the Rabinowitz Floer homology of the filling is nonzero, then every contactomorphism isotopic to the identity admits a translated point, and if the Rabinowitz Floer homology of the filling is infinite dimensional, then every contactomorphism isotopic to the identity has either infinitely many translated points, or a translated point on a closed leaf. Moreover, if the contact manifold has dimension greater than or equal to 3, the latter option generically does not happen. Finally, we prove that a generic compactly supported contactomorphism on \({\mathbb{R}^{2n+1}}\) has infinitely many geometrically distinct iterated translated points all of which lie in the interior of its support.
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Albers, P., Merry, W.J. Translated points and Rabinowitz Floer homology. J. Fixed Point Theory Appl. 13, 201–214 (2013). https://doi.org/10.1007/s11784-013-0114-7
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DOI: https://doi.org/10.1007/s11784-013-0114-7