The role of elimination trees in sparse factorization
SIAM Journal on Matrix Analysis and Applications
Graph rewriting: an algebraic and logic approach
Handbook of theoretical computer science (vol. B)
Elimination structures for unsymmetric sparse LU factors
SIAM Journal on Matrix Analysis and Applications
Approximation algorithms for NP-complete problems on planar graphs
Journal of the ACM (JACM)
Approximating treewidth, pathwidth, frontsize, and shortest elimination tree
Journal of Algorithms
Upper bounds to the clique width of graphs
Discrete Applied Mathematics
Journal of Combinatorial Theory Series B
Treewidth: Algorithmoc Techniques and Results
MFCS '97 Proceedings of the 22nd International Symposium on Mathematical Foundations of Computer Science
Journal of Combinatorial Theory Series B
Algorithmic Graph Minor Theory: Decomposition, Approximation, and Coloring
FOCS '05 Proceedings of the 46th Annual IEEE Symposium on Foundations of Computer Science
DAG-width: connectivity measure for directed graphs
SODA '06 Proceedings of the seventeenth annual ACM-SIAM symposium on Discrete algorithm
Approximating clique-width and branch-width
Journal of Combinatorial Theory Series B
On exact algorithms for treewidth
ESA'06 Proceedings of the 14th conference on Annual European Symposium - Volume 14
Journal of Combinatorial Theory Series B
STACS'06 Proceedings of the 23rd Annual conference on Theoretical Aspects of Computer Science
Efficient exact algorithms on planar graphs: exploiting sphere cut branch decompositions
ESA'05 Proceedings of the 13th annual European conference on Algorithms
D-Width: a more natural measure for directed tree width
MFCS'05 Proceedings of the 30th international conference on Mathematical Foundations of Computer Science
An annotated bibliography on guaranteed graph searching
Theoretical Computer Science
Digraph measures: Kelly decompositions, games, and orderings
Theoretical Computer Science
Digraph searching, directed vertex separation and directed pathwidth
Discrete Applied Mathematics
Digraph Decompositions and Monotonicity in Digraph Searching
Graph-Theoretic Concepts in Computer Science
Communication: On complexity of Minimum Leaf Out-Branching problem
Discrete Applied Mathematics
Graph searching in a crime wave
WG'07 Proceedings of the 33rd international conference on Graph-theoretic concepts in computer science
Characterization and recognition of digraphs of bounded Kelly-width
WG'07 Proceedings of the 33rd international conference on Graph-theoretic concepts in computer science
Arc searching digraphs without jumping
COCOA'07 Proceedings of the 1st international conference on Combinatorial optimization and applications
Directed graphs of entanglement two
FCT'09 Proceedings of the 17th international conference on Fundamentals of computation theory
The complexity of Nash equilibria in infinite multiplayer games
FOSSACS'08/ETAPS'08 Proceedings of the Theory and practice of software, 11th international conference on Foundations of software science and computational structures
Parity games with partial information played on graphs of bounded complexity
MFCS'10 Proceedings of the 35th international conference on Mathematical foundations of computer science
A polynomial time algorithm for bounded directed pathwidth
WG'11 Proceedings of the 37th international conference on Graph-Theoretic Concepts in Computer Science
On the algorithmic effectiveness of digraph decompositions and complexity measures
Discrete Optimization
Entanglement and the complexity of directed graphs
Theoretical Computer Science
Beyond bidimensionality: Parameterized subexponential algorithms on directed graphs
Information and Computation
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We consider various well-known, equivalent complexity measures for graphs such as elimination orderings, κ-trees and cops and robber games and study their natural translations to digraphs. We show that on digraphs all these measures are also equivalent and induce a natural connectivity measure. We introduce a decomposition for digraphs and an associated width, Kelly-width, which is equivalent to the aforementioned measure. We demonstrate its usefulness by exhibiting a number of potential applications including polynomial-time algorithms for NP-complete problems on graphs of bounded Kelly-width, and complexity analysis of asymmetric matrix factorization. Finally, we compare the new width to other known decompositions of digraphs.