关于Bent方阵数量的一个下界
组合数学
2025-09-09 v3
摘要
Bent函数是达到最大非线性度的布尔函数。它们可以表示为bent方阵,即每一行和每一列都是一个布尔函数的Walsh谱的方阵。利用这种表示,本文证明了对于偶数 , 个变量的bent函数的数量至少为 。
引用
@article{arxiv.2508.14605,
title = {A lower bound on the number of bent squares},
author = {Jan Kristian Haugland},
journal= {arXiv preprint arXiv:2508.14605},
year = {2025}
}
备注
5 pages. Expanded on the introduction. Rephrased definition of bent functions avoiding repeated "in n variables". Added implied number of bent squares with all vectors of type 1. Fixed typo in expression 2^{n/2-1} in the second to last paragraph of the proof of the theorem. Alphabetized references