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Density of positive Lyapunov exponents for symplectic cocycles

Dynamical Systems 2016-01-25 v3

Abstract

We prove that Sp(2d;R), HSp(2d) and pseudo unitary cocycles with at least one non-zero Lyapunov exponent are dense in all usual regularity classes for non periodic dynamical systems. For Schr\"odinger operators on the strip, we prove a similar result for density of positive Lyapunov exponents.

Keywords

Cite

@article{arxiv.1506.05403,
  title  = {Density of positive Lyapunov exponents for symplectic cocycles},
  author = {Disheng Xu},
  journal= {arXiv preprint arXiv:1506.05403},
  year   = {2016}
}