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Orderability and the Weinstein conjecture

Part of: Finite-dimensional Hamiltonian, Lagrangian, contact, and nonholonomic systems Symplectic geometry, contact geometry

Published online by Cambridge University Press:  24 September 2015

Peter Albers ,
Urs Fuchs  and
Will J. Merry
Peter Albers
Affiliation:
Mathematisches Institut, Westfälische Wilhelms-Universität Münster, Germany email peter.albers@wwu.de
Urs Fuchs
Affiliation:
Fakultät für Mathematik, Ruhr-Universität Bochum, Germany email urs.fuchs@rub.de
Will J. Merry
Affiliation:
Department of Mathematics, ETH Zürich, Switzerland email merry@math.ethz.ch
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Abstract

In this article we prove that the Weinstein conjecture holds for contact manifolds $({\rm\Sigma},{\it\xi})$ for which $\text{Cont}_{0}({\rm\Sigma},{\it\xi})$ is non-orderable in the sense of Eliashberg and Polterovich [Partially ordered groups and geometry of contact transformations, Geom. Funct. Anal. 10 (2000), 1448–1476]. More precisely, we establish a link between orderable and hypertight contact manifolds. In addition, we prove for certain contact manifolds a conjecture by Sandon [A Morse estimate for translated points of contactomorphisms of spheres and projective spaces, Geom. Dedicata 165 (2013), 95–110] on the existence of translated points in the non-degenerate case.

Keywords

orderabilityWeinstein conjecturehypertight contact structuresRabinowitz Floer homology

MSC classification

Primary: 37J55: Contact systems 53D10: Contact manifolds, general 53D40: Floer homology and cohomology, symplectic aspects 53D42: Symplectic field theory; contact homology
Type
Research Article
Information
Compositio Mathematica , Volume 151 , Issue 12 , December 2015 , pp. 2251 - 2272
Copyright
© The Authors 2015 

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