Proceedings of the 30th IEEE symposium on Foundations of computer science
Using PRAM Algorithms on a Uniform-Memory-Access Shared-Memory Architecture
WAE '01 Proceedings of the 5th International Workshop on Algorithm Engineering
Improved algorithms for graph four-connectivity
SFCS '87 Proceedings of the 28th Annual Symposium on Foundations of Computer Science
Certifying 3-connectivity in linear time
ICALP'12 Proceedings of the 39th international colloquium conference on Automata, Languages, and Programming - Volume Part I
Hi-index | 0.00 |
An ear-decomposition of a digraph is a representation of it as the union of (open or closed) directed paths, each having its endpoints in common with the union of the previous paths but nothing else. We prove that finding an ear-decomposition of a strongly directed graph is in NC, i.e. an eardecomposition can be constructed in parallel in polylog time, using a polynomial number of processors. Using a similar technique, we show that the problem of finding a minimum weight spanning arborescence in an arcweighted rooted digraph is in NC.