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An Application of Convex Integration to Contact Geometry
Authors:Hansjö  rg Geiges  Jesú  s Gonzalo
Institution:Department of Mathematics, Stanford University, Stanford, California 94305-2125 ; Departamento de Matemáticas, Universidad Autónoma de Madrid, 28049 Madrid, Spain
Abstract:We prove that every closed, orientable $3$-manifold $M$ admits a parallelization by the Reeb vector fields of a triple of contact forms with equal volume form. Our proof is based on Gromov's convex integration technique and the $h$-principle. Similar methods can be used to show that $M$ admits a parallelization by contact forms with everywhere linearly independent Reeb vector fields. We also prove a generalization of this latter result to higher dimensions. If $M$ is a closed $(2n+1)$-manifold with contact form $\omega $ whose contact distribution $\ker \omega$ admits $k$ everywhere linearly independent sections, then $M$ admits $k+1$ linearly independent contact forms with linearly independent Reeb vector fields.

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