Cube packing
β Scribed by F.K. Miyazawa; Y. Wakabayashi
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 138 KB
- Volume
- 297
- Category
- Article
- ISSN
- 0304-3975
No coin nor oath required. For personal study only.
β¦ Synopsis
The Cube Packing Problem (CPP) is deΓΏned as follows. Find a packing of a given list of (small) cubes into a minimum number of (larger) identical cubes. We show ΓΏrst that the approach introduced by Coppersmith and Raghavan for general on-line algorithms for packing problems leads to an on-line algorithm for CPP with asymptotic performance bound 3.954. Then we describe two other o -line approximation algorithms for CPP: one with asymptotic performance bound 3.466 and the other with 2.669. A parametric version of this problem is deΓΏned and results on on-line and o -line algorithms are presented. The 2.669 result appears to be the best asymptotic bound currently known.
π SIMILAR VOLUMES
We study optimal coverings of lattices associated with a given n-cube by frames (= Hamming spheres of radius one) and extended frames under certain constraints, e.g., by constituting at the same time packings of the edge system in such finite lattices. These investigations also yield results on diff