Reversing a Philosophy: From Counting to Square Functions and Decoupling
Reversing a Philosophy: From Counting to Square Functions and Decoupling
复制标题
逆转哲学:从计数到平方函数和解耦
DOI:
10.1007/s12220-020-00593-x
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Yung, Po-Lam
中科院分区:
文献类型:
--
作者:
Gressman, Philip T.;Guo, Shaoming;Pierce, Lillian B.;Roos, Joris;Yung, Po-Lam
Breakthrough work of Bourgain, Demeter, and Guth recently established that decoupling inequalities can prove powerful results on counting integral solutions to systems of Diophantine equations. In this note we demonstrate that in appropriate situations this implication can also be reversed. As a first example, we observe that a count for the number of integral solutions to a system of Diophantine equations implies a discrete decoupling inequality. Second, in our main result we prove ansquare function estimate (which implies a corresponding decoupling estimate) for the extension operator associated to a non-degenerate curve in. The proof is via a combinatorial argument that builds on the idea that ifis a non-degenerate curve in, then as long asare chosen from a sufficiently well-separated set, then γ ( x 1 ) + ⋯ + γ ( x n ) = γ ( x n + 1 ) + ⋯ + γ ( x 2 n ) essentially only admits solutions in whichis a permutation of.
DOI:
10.24033/ast.1072
发表时间:
2017-07
期刊:
Astérisque
影响因子:
--
作者:
L. Pierce
通讯作者:
L. Pierce
DOI:
10.1007/s11401-016-1066-1
发表时间:
2016
期刊:
Chinese Annals of Mathematics, Series B
影响因子:
--
作者:
J. Bourgain;C. Demeter
通讯作者:
C. Demeter
影响因子:
0.7
作者:
R. Vaughan;T. Wooley
通讯作者:
T. Wooley