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High-entropy dual functions over finite fields and locally decodable codes
Forum of Mathematics, Sigma ( IF 1.389 ) Pub Date : 2021-03-08 , DOI: 10.1017/fms.2021.1 Jop Briët , Farrokh Labib
Forum of Mathematics, Sigma ( IF 1.389 ) Pub Date : 2021-03-08 , DOI: 10.1017/fms.2021.1 Jop Briët , Farrokh Labib
We show that for infinitely many primes p there exist dual functions of order k over ${\mathbb{F}}_p^n$ that cannot be approximated in $L_\infty $ -distance by polynomial phase functions of degree $k-1$ . This answers in the negative a natural finite-field analogue of a problem of Frantzikinakis on $L_\infty $ -approximations of dual functions over ${\mathbb{N}}$ (a.k.a. multiple correlation sequences) by nilsequences.
中文翻译:
有限域上的高熵对偶函数和局部可解码代码
我们证明对于无限多的素数p 存在秩序的双重功能ķ 超过 ${\mathbb{F}}_p^n$ 无法近似的 $L_\infty $ - 度数的多项式相位函数的距离 $k-1$ . 这否定了 Frantzikinakis 问题的自然有限域模拟 $L_\infty $ -对偶函数的近似值 ${\mathbb{N}}$ (又名多重相关序列)由 nilsequences。
更新日期:2021-03-08
中文翻译:
有限域上的高熵对偶函数和局部可解码代码
我们证明对于无限多的素数