arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2408.07112math.COmath.MG
收藏

六柱(hexastix)排布向更高维度的推广

A generalization of the hexastix arrangement to higher dimensions

Jan Kristian Haugland

AI总结:

该研究基于排列体格A*_n将hexastix六棱柱排布推广到n维空间,证明n为素数幂时满足最大最小线距的构造可行,算出4、5维空间的覆盖比例并提及另一种推广思路。

摘要:

Hexastix是一种由互不重叠的无限六棱柱沿四个不同方向排布、覆盖3/4空间的结构。我们基于排列体格(permutohedral lattice)A*_n,研究其向n维空间的一种可行推广。广义棱柱的中心线将沿n+1个不同方向取向(平行于A*_n的最短非零向量)。要求任一方向的直线沿该方向向垂直超平面的投影,是A*_n对应投影的一个平移,且任意两个给定方向的直线之间的最小距离应取最大值。研究表明,当n为素数幂时该构造可行。此外,我们计算了n∈{4,5}时n维空间的被覆盖比例,并简要探讨了另一种推广方案。

英文摘要:

Hexastix is an arrangement of non-overlapping infinite hexagonal prisms in four different directions that cover $\frac{3}{4}$ of space. We consider a possible generalization to $n$ dimensions, based on the permutohedral lattice $A^*_n$. The central lines of the generalized prisms are going to be oriented in $n+1$ different directions (parallel to the shortest non-zero vectors of $A^*_n$). The projection of the lines oriented in any direction along that direction to a hyperplane perpendicular to it is required to be a translation of the corresponding projection of $A^*_n$, and the minimal distance between lines oriented in any two given directions should be maximal. It is shown that this is possible if $n$ is a prime power. Also, the proportion of $n$-space that is covered is calculated for $n \in \{4, 5\}$, and an alternative generalization is briefly considered.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑