The problem of thirteen spheres - a proof for undergraduates
The problem of thirteen spheres - a proof for undergraduates
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DOI:
10.1016/j.ejc.2006.06.019
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发表时间:
2007-08-01
影响因子:
1
通讯作者:
Maehara, H.
中科院分区:
文献类型:
--
作者:
Maehara, H.
The purpose of this note is to present an elementary proof of the fact that no more than twelve unit balls can simultaneously touch a unit ball in 3-space, a proof that is accessible for undergraduates. (C) 2006 Elsevier Ltd. All rights reserved.