Almost Affinely Disjoint Subspaces

Almost Affinely Disjoint Subspaces
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几乎仿射不相交的子空间

DOI:
10.1016/j.ffa.2021.101879
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发表时间:
2021
期刊:
ArXiv
影响因子:
--
通讯作者:
Antonia Wachter-Zeh
Antonia Wachter-Zeh
中科院分区:
--
文献类型:
--
作者:
Hedongliang Liu;Nikita Polyanskii;Ilya Vorobyev;Antonia Wachter-Zeh

文献摘要

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在这项工作中,我们介绍了一个自然的概念,关于有限向量空间。Fqn的一个k维子空间族称为几乎仿射不相交,如果任何包含该族子空间的(k+ 1)维子空间只与该族的少数子空间非平凡相交.本文讨论的中心问题是给定参数k和n的这些族的最大基数的多项式增长(在q中)。对于k= 1和k= 2的情形,构造了最优族。对于其他设置,我们发现多项式增长的下限和上限。此外,在编码理论中的一些问题的连接。
In this work, we introduce a natural notion concerning finite vector spaces. A family of k-dimensional subspaces of F q n, which forms a partial spread, is called almost affinely disjoint if any (k+ 1)-dimensional subspace containing a subspace from the family non-trivially intersects with only a few subspaces from the family. The central question discussed in the paper is the polynomial growth (in q) of the maximal cardinality of these families given the parameters k and n. For the cases k= 1 and k= 2, optimal families are constructed. For other settings, we find lower and upper bounds on the polynomial growth. Additionally, some connections with problems in coding theory are shown.
DOI: 10.1109/tit.2004.834744
发表时间: 2004-06
影响因子: 2.5
作者:
S. Yekhanin;I. Dumer
通讯作者: S. Yekhanin;I. Dumer
通过线性多项式和子空间设计的无损维度扩展器
DOI: --
发表时间: 2018
期刊: Combinatorica
影响因子: 1.1
作者:
V. Guruswami;Nicolas Resch;C. Xing
通讯作者: C. Xing