Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
414740 | Computational Geometry | 2012 | 7 Pages |
Abstract
We show that a convex body can pass through a triangular hole iff it can do so by a translation along a line perpendicular to the hole. As an application, we determine the minimum size of an equilateral triangular hole through which a regular tetrahedron with unit edge can pass. The minimum edge length of the hole is (1+2)/6≈0.9856. One of the key facts for the proof is that no triangular frame can hold a convex body. On the other hand, we also show that every non-triangular frame can fix some tetrahedron.
Related Topics
Physical Sciences and Engineering
Computer Science
Computational Theory and Mathematics
Authors
Imre Bárány, Hiroshi Maehara, Norihide Tokushige,