Local Mixing of One-Parameter Diagonal Flows on Anosov Homogeneous Spaces
Local Mixing of One-Parameter Diagonal Flows on Anosov Homogeneous Spaces
复制标题
Anosov齐次空间上一参数对角流的局部混合
DOI:
10.1093/imrn/rnac342
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发表时间:
2021
影响因子:
1
通讯作者:
Pratyush Sarkar
中科院分区:
文献类型:
--
作者:
Michael Chow;Pratyush Sarkar
Let $G$ be a connected semisimple real algebraic group and $\Gamma < G$ be a Zariski dense Anosov subgroup with respect to a minimal parabolic subgroup. We prove local mixing of the one-parameter diagonal flow $\{\exp (t\mathsf {v}): t \in {\mathbb {R}}\}$ on $\Gamma \backslash G$ for any interior direction $\mathsf {v}$ of the limit cone of $\Gamma $ with respect to the Bowen–Margulis–Sullivan measure associated to $\mathsf {v}$. More generally, we allow a class of deviations to this flow along a direction $\mathsf {u}$ in some fixed subspace transverse to $\mathsf {v}$. We also obtain a uniform bound for the correlation function, which decays exponentially in $\|\mathsf {u}\|^2$. The precise form of the result is required for several applications such as the asymptotic formula for the decay of matrix coefficients in $L^2(\Gamma \backslash G)$ proved by Edwards–Lee–Oh.
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