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111
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FCT
2009
Springer
15 years 7 months ago
Directed Graphs of Entanglement Two
Entanglement is a complexity measure for directed graphs that was used to show that the variable hierarchy of the propositional modal µ-calculus is strict. While graphs of entangl...
Erich Grädel, Lukasz Kaiser, Roman Rabinovich
101
Voted
COCO
2010
Springer
152views Algorithms» more  COCO 2010»
15 years 4 months ago
A Log-Space Algorithm for Reachability in Planar Acyclic Digraphs with Few Sources
Designing algorithms that use logarithmic space for graph reachability problems is fundamental to complexity theory. It is well known that for general directed graphs this problem...
Derrick Stolee, Chris Bourke, N. V. Vinodchandran
97
Voted
SIAMJO
2008
86views more  SIAMJO 2008»
15 years 16 days ago
On the Second-Order Feasibility Cone: Primal-Dual Representation and Efficient Projection
We study the second-order feasibility cone F = {y IRn : My gT y} for given data (M, g). We construct a new representation for this cone and its dual based on the spectral decompo...
Alexandre Belloni, Robert M. Freund
70
Voted
IROS
2009
IEEE
133views Robotics» more  IROS 2009»
15 years 7 months ago
Roadmap composition for multi-arm systems path planning
— This paper presents a new method for planning motions of multi-arm systems in constrained workspaces, for which state-of-the-art planners behave poorly. The method is based on ...
Mokhtar Gharbi, Juan Cortés, Thierry Sim&ea...
115
Voted
COCOON
2003
Springer
15 years 5 months ago
Petri Nets with Simple Circuits
We study the complexity of the reachability problem for a new subclass of Petri nets called simple-circuit Petri nets, which properly contains several well known subclasses such as...
Hsu-Chun Yen, Lien-Po Yu