A note on Hornich's problem

被引：3

作者：

Zong, C ^{[1
]}

机构：

[1] Univ London Univ Coll, Dept Math, London WC1E 6BT, England

来源：

ARCHIV DER MATHEMATIK | 1999年 / 72卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Unit Sphere; Approximation Theorem; Nonoverlapping Unit;

D O I：

10.1007/s000130050313

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

This note, by applying Dirichlet's approximation theorem, achieves an upper bound for Hornich's problem, the problem to determine the smallest number of nonoverlapping unit spheres which can block all the light rays starting from the center of a fixed one.

引用

页码：127 / 131

页数：5

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