105 search results - page 7 / 21 » Permutation statistics on involutions |
ECCC
2011
13 years 1 months ago
2011
A family of permutations in Sn is k-wise independent if a uniform permutation chosen from the family maps any distinct k elements to any distinct k elements equally likely. Effici...
BMCBI
2007
13 years 7 months ago
2007
Background: Innovative extensions of (M) ANOVA gain common ground for the analysis of designed metabolomics experiments. ASCA is such a multivariate analysis method; it has succes...
JCT
2010
13 years 5 months ago
2010
We propose a major index statistic on 01-fillings of moon polyominoes which, when specialized to certain shapes, reduces to the major index for permutations and set partitions. W...
COMBINATORICS
2006
13 years 7 months ago
2006
In [5] the authors refine the well-known permutation statistic "descent" by fixing parity of one of the descent's numbers. In this paper, we generalize the results o...
BMCBI
2005
13 years 7 months ago
2005
Background: One important application of microarray experiments is to identify differentially expressed genes. Often, small and negative expression levels were clipped-off to be e...