49 search results - page 6 / 10 » A q-enumeration of alternating permutations |
JCT
2011
13 years 2 months ago
2011
The Baxter number Bn can be written as Bn = n k=0 Θk,n−k−1 with Θk,ℓ = 2 (k + 1)2 (k + 2) k + ℓ k k + ℓ + 1 k k + ℓ + 2 k . These numbers have first appeared in the...
ASIACRYPT
2000
Springer
14 years 2 days ago
2000
Springer
Abstract. We investigate several alternate characterizations of pseudorandom functions (PRFs) and pseudorandom permutations (PRPs) in a concrete security setting. By analyzing the ...
IDA
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. The label switching problem, the unidentifiability of the permutation of clusters or more generally latent variables, makes interpretation of results computed with MCMC ...
COCOON
2003
Springer
14 years 29 days ago
2003
Springer
As more and more genomes are sequenced, evolutionary biologists are becoming increasingly interested in evolution at the level of whole genomes, in scenarios in which the genome ev...
WSC
2004
13 years 9 months ago
2004
Hospitals today are investing time and money to expand and improve their Emergency Departments (ED). Using simulation to test their many improvement ideas can necessitate running ...