On Lorentz dynamics: From group actions to warped products via homogeneous spaces

Author:

Arouche A.,Deffaf M.,Zeghib A.

Abstract

We show a geometric rigidity of isometric actions of non-compact (semisimple) Lie groups on Lorentz manifolds. Namely, we show that the manifold has a warped product structure of a Lorentz manifold with constant curvature by a Riemannian manifold.

Publisher

American Mathematical Society (AMS)

Subject

Applied Mathematics,General Mathematics

Reference13 articles.

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1. Topological properties of some flat Lorentzian manifolds of low cohomogeneity;Hiroshima Mathematical Journal;2014-11-01

2. Semi-Riemannian manifolds with a doubly warped structure;Revista Matemática Iberoamericana;2012

3. Actions of semisimple Lie groups preserving a degenerate Riemannian metric;Transactions of the American Mathematical Society;2009-12-17

4. Actions of Noncompact Semisimple Groups on Lorentz Manifolds;Geometric and Functional Analysis;2008-04-22

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