English

Global rigidity of actions by higher rank lattices with dominated splitting

Dynamical Systems 2021-11-01 v2 Group Theory Geometric Topology

Abstract

We prove that any smooth volume-preserving action of a lattice Γ\Gamma in SL(n,R)\textrm{SL}(n,\mathbb{R}), n3n\ge 3, on a closed nn-manifold which possesses one element that admits a dominated splitting should be standard. In other words, the manifold is the nn-flat torus and the action is smoothly conjugate to an affine action. Note that an Anosov diffeomorphism, or more generally, a partial hyperbolic diffeomorphism admits a dominated splitting. We have a topological global rigidity when α\alpha is C1C^{1}. Similar theorems hold for an action of a lattice in Sp(2n,R)\textrm{Sp}(2n,\mathbb{R}) with n2n\ge 2 and SO(n,n)\textrm{SO}(n,n) with n5n\ge 5 on a closed 2n2n-manifold.

Keywords

Cite

@article{arxiv.2010.11874,
  title  = {Global rigidity of actions by higher rank lattices with dominated splitting},
  author = {Homin Lee},
  journal= {arXiv preprint arXiv:2010.11874},
  year   = {2021}
}

Comments

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