116 search results - page 1 / 24 » Suballowable sequences of permutations |
DAGSTUHL
2006
13 years 6 months ago
2006
ASAP
2000
IEEE
13 years 9 months ago
2000
IEEE
Permutation is widely used in cryptographic algorithms. However, it is not well-supported in existing instruction sets. In this paper, two instructions, PPERM3R and GRP, are propo...
PPAM
2007
Springer
13 years 11 months ago
2007
Springer
The concept of a partial derangement is introduced and a versatile representation of partial derangements is proposed with permutations and derangements as special cases. The repre...
KDD
2008
ACM
14 years 5 months ago
2008
ACM
Pattern discovery in sequences is an important problem in many applications, especially in computational biology and text mining. However, due to the noisy nature of data, the tra...
JCT
2010
13 years 3 months ago
2010
Abstract. We present bijections between four classes of combinatorial objects. Two of them, the class of unlabeled (2 + 2)-free posets and a certain class of involutions (or chord ...