English

Expanding curves in $\mathrm{T}^1(\mathbb{H}^n)$ under geodesic flow and equidistribution in homogeneous spaces

Dynamical Systems 2015-11-10 v2

Abstract

Let H=SO(n,1)H = \mathrm{SO}(n,1) and A={a(t):tR}A =\{a(t) : t \in \mathbb{R}\} be a maximal R\mathbb{R}-split Cartan subgroup of HH. Let GG be a Lie group containing HH and Γ\Gamma be a lattice of GG. Let x=gΓG/Γx = g\Gamma \in G/\Gamma be a point of G/ΓG/\Gamma such that its HH-orbit HxHx is dense in G/ΓG/\Gamma. Let ϕ:I=[a,b]H\phi: I= [a,b] \rightarrow H be an analytic curve, then ϕ(I)x\phi(I)x gives an analytic curve in G/ΓG/\Gamma. In this article, we will prove the following result: if ϕ(I)\phi(I) satisfies some explicit geometric condition, then a(t)ϕ(I)xa(t)\phi(I)x tends to be equidistributed in G/ΓG/\Gamma as tt \rightarrow \infty. It answers the first question asked by Shah in ~\cite{Shah_1} and generalizes the main result of that paper.

Keywords

Cite

@article{arxiv.1303.6023,
  title  = {Expanding curves in $\mathrm{T}^1(\mathbb{H}^n)$ under geodesic flow and equidistribution in homogeneous spaces},
  author = {Lei Yang},
  journal= {arXiv preprint arXiv:1303.6023},
  year   = {2015}
}

Comments

15 pages. The paper is rewritten according to referee's suggestions