A bilinear version of Bogolyubov’s theorem
A bilinear version of Bogolyubov’s theorem
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博戈柳博夫定理的双线性版本
DOI:
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发表时间:
2017
影响因子:
1
通讯作者:
L. Milicevic
中科院分区:
文献类型:
--
作者:
W. Gowers;L. Milicevic
A theorem of Bogolyubov states that for every dense set $A$ in $mathbb{Z}_N$ we may find a large Bohr set inside $A+A-A-A$. In this note, motivated by the work on a quantitative inverse theorem for the Gowers $U^4$ norm, we prove a bilinear variant of this result in vector spaces over finite fields. Namely, if we start with a dense set $A subset mathbb{F}^n_p imes mathbb{F}^n_p$ and then take rows (respectively columns) of $A$ and change each row (respectively column) to the set difference of it with itself, repeating this procedure several times, we obtain a bilinear analogue of a Bohr set inside the resulting set, namely the zero set of a biaffine map from $mathbb{F}^n_p imes mathbb{F}^n_p$ to a $mathbb{F}_p$-vector space of bounded dimension. An almost identical result was proved independently by Bienvenu and L^e.
影响因子:
1
作者:
Bienvenu, Pierre-Yves;González-Sánchez, Diego;Martínez, Ángel D.
通讯作者:
Martínez, Ángel D.
影响因子:
1
作者:
Bienvenu, Pierre-Yves;Lê, Thái Hoàng
通讯作者:
Lê, Thái Hoàng
影响因子:
0.8
作者:
Bienvenu, Pierre-Yves;Lê, Thái Hoàng
通讯作者:
Lê, Thái Hoàng