English

Rigidity of measures on the torus: smooth stabilizers and entropy

Dynamical Systems 2010-12-03 v3

Abstract

For a nonlinear Anosov diffeomorphism of the 2-torus, we present examples of measures so that the group of μ\mu-preserving diffeomorphisms is, up to zero-entropy transformations, cyclic. For families of equilibrium states μ\mu, we strengthen this to show that the group of μ\mu-preserving diffeomorphism is virtually cyclic.

Keywords

Cite

@article{arxiv.1008.3197,
  title  = {Rigidity of measures on the torus: smooth stabilizers and entropy},
  author = {Aaron W. Brown},
  journal= {arXiv preprint arXiv:1008.3197},
  year   = {2010}
}

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