On a multi-parameter variant of the Bellow–Furstenberg problem
On a multi-parameter variant of the Bellow–Furstenberg problem
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关于 Bellow-Furstenberg 问题的多参数变体
DOI:
10.1017/fmp.2023.21
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Wright, James
中科院分区:
文献类型:
--
作者:
Bourgain, Jean;Mirek, Mariusz;Stein, Elias M.;Wright, James
We prove convergence in norm and pointwise almost everywhere on , for certain multi-parameter polynomial ergodic averages by establishing the corresponding multi-parameter maximal and oscillation inequalities. Our result, in particular, gives an affirmative answer to a multi-parameter variant of the Bellow–Furstenberg problem. This paper is also the first systematic treatment of multi-parameter oscillation semi-norms which allows an efficient handling of multi-parameter pointwise convergence problems with arithmetic features. The methods of proof of our main result develop estimates for multi-parameter exponential sums, as well as introduce new ideas from the so-called multi-parameter circle method in the context of the geometry of backwards Newton diagrams that are dictated by the shape of the polynomials defining our ergodic averages.
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影响因子:
1
作者:
J. Bourgain
通讯作者:
J. Bourgain
影响因子:
1.7
作者:
Mariusz Mirek;E. Stein;Pavel Zorin
通讯作者:
Pavel Zorin
DOI:
10.1007/s11854-007-0010-4
发表时间:
2007
期刊:
Journal d'Analyse Mathématique
影响因子:
--
作者:
Á. Magyar;E. Stein;S. Wainger
通讯作者:
S. Wainger
影响因子:
1.7
作者:
Mariusz Mirek;E. Stein;B. Trojan
通讯作者:
B. Trojan
DOI:
10.1007/s11854-011-0006-y
发表时间:
2009
期刊:
Journal d'Analyse Mathématique
影响因子:
--
作者:
Patrick LaVictoire
通讯作者:
Patrick LaVictoire