Sciweavers

61 search results - page 1 / 13
» On Packing Densities of Permutations
Sort
View
EJC
2010
13 years 4 months ago
Packing sets of patterns
Packing density is a permutation occurrence statistic which describes the maximal number of permutations of a given type that can occur in another permutation. In this article we ...
Alexander Burstein, Peter Hästö
COMBINATORICS
2002
59views more  COMBINATORICS 2002»
13 years 4 months ago
On Packing Densities of Permutations
Michael H. Albert, Mike D. Atkinson, Chris C. Hand...
COMBINATORICS
2004
105views more  COMBINATORICS 2004»
13 years 4 months ago
An Answer to a Question by Wilf on Packing Distinct Patterns in a Permutation
We present a class of permutations for which the number of distinctly ordered subsequences of each permutation approaches an almost optimal value as the length of the permutation ...
Micah Coleman
DCG
2008
81views more  DCG 2008»
13 years 4 months ago
A Dense Packing of Regular Tetrahedra
We construct a dense packing of regular tetrahedra, with packing density D > .7786157. Keywords Crystallography
Elizabeth R. Chen