arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1708.03221math.DS
收藏

斜积结构和多重遍历系统时间平均的收敛性

On the convergence of the time average for skew-product structure and multiple ergodic system

Xia Pan, Zuohuan Zheng, Zhe Zhou

摘要:

本文对具有可积观测函数的不连续斜积变换,得到了一致遍历定理和半一致遍历定理。其主要假设是在某种测度论意义下忽略变换和观测函数的不连续集。这些定理推广了连续动力系统或连续观测函数的经典结果。同时,在具有特殊旋转的环面$\mathbb{T}^{d}$上,证明了多重遍历平均$\disp \f 1 N \sum_{n=0}^{N-1} f_{1}(R_α^{n}x)f_{2}(R_α^{2n}x)$在$\mathbb{T}^{d}$中的逐点收敛性。

英文摘要:

In this paper, for a discontinuous skew-product transformation with the integrable observation function, we obtain uniform ergodic theorem and semi-uniform ergodic theorem. The main assumptions are that discontinuity sets of transformation and observation function are neglected in some measure-theoretical sense. The theorems extend the classical results which have been established for continuous dynamical systems or continuous observation functions. Meanwhile, on the torus $\mathbb{T}^{d}$ with special rotation, we prove the pointwise convergence of multiple ergodic average $\disp \f 1 N \sum_{n=0}^{N-1} f_{1}(R_α^{n}x)f_{2}(R_α^{2n}x)$ in $\mathbb{T}^{d}$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑