DAM
2007
13 years 11 months ago
2007
Theproblemofsortingsignedpermutationsbyreversalsisinspiredbygenomerearrangementproblemsincomputationalmolecular biology. Given two genomes represented as signed permutations of th...
COMBINATORICS
2007
13 years 11 months ago
2007
By introducing the notion of relative derangements of type B, also called signed relative derangements, which are defined in terms of signed permutations, we obtain a type B anal...
BIOCOMP
2006
14 years 9 days ago
2006
Sorting signed permutations by reversals is a fundamental problem in computationial molecular biology. In this paper we present an improved algorithm for sorting by reversals. Our...
STOC
1995
ACM
14 years 2 months ago
1995
ACM
Genomes frequently evolve by reversals (i, j) that transform a gene order 1 . . . iiϩ1 . . . jϪ1j . . . n into 1 . . . ijϪ1 . . . iϩ1j . . ....
COCOON
2003
Springer
14 years 4 months 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...
CPM
2004
Springer
14 years 4 months ago
2004
Springer
Abstract. This paper presents an elementary proof of the HannenhalliPevzner theorem on the reversal distance of two signed permutations. It uses a single PQ-tree to encode the vari...
WABI
2005
Springer
14 years 4 months ago
2005
Springer
—We propose new algorithms for computing pairwise rearrangement scenarios that conserve the combinatorial structure of genomes. More precisely, we investigate the problem of sort...
CPM
2009
Springer
14 years 5 months ago
2009
Springer
A sequence of reversals that takes a signed permutation to the identity is perfect if it preserves all common intervals between the permutation and the identity. The problem of com...