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arXiv 1409.0463math.DS
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Wiener-Wintner双递推定理在多项式上的推广

Extension of Wiener-Wintner double recurrence theorem to polynomials

Idris Assani, Ryo Moore

摘要:

我们将我们关于双递归Wiener-Wintner平均的收敛性的结果推广到多项式指数的情形。我们将证明,存在一个完整的措施,其中平均值\[ \frac{1}{N} \sum_{n=1}^N f_1(T^{an}x)f_2(T^{bn}x)ϕ(p(n)) \]收敛的任何多项式$p$与实系数,和任何连续函数$ϕ$从环面的集合复数。我们还表明,如果任何一个功能属于一个适当的主机-克拉-齐格勒因子,取决于多项式$p$的程度的正交补,那么平均值收敛到零均匀的所有多项式。本文结合了作者先前宣布的工作。

英文摘要:

We extend our result on the convergence of double recurrence Wiener-Wintner averages to the case where we have a polynomial exponent. We will show that there exists a single set of full measure for which the averages \[ \frac{1}{N} \sum_{n=1}^N f_1(T^{an}x)f_2(T^{bn}x)ϕ(p(n)) \] converge for any polynomial $p$ with real coefficients, and any continuous function $ϕ$ from the torus to the set of complex numbers . We also show that if either function belongs to an orthogonal complement of an appropriate Host-Kra-Ziegler factor that depends on the degree of the polynomial $p$, then the averages converge to zero uniformly for all polynomials. This paper combines the authors' previously announced work.

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。

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