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» On Bounds for the k-Partitioning of Graphs
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GD
2007
Springer
16 years 16 days ago
Moving Vertices to Make Drawings Plane
In John Tantalo’s on-line game Planarity the player is given a non-plane straight-line drawing of a planar graph. The aim is to make the drawing plane as quickly as possible by m...
Xavier Goaoc, Jan Kratochvíl, Yoshio Okamot...
SAT
2007
Springer
146views Hardware» more  SAT 2007»
16 years 14 days ago
Algorithms for Variable-Weighted 2-SAT and Dual Problems
Abstract. In this paper we study NP-hard weighted satisfiability optimization problems for the class 2-CNF providing worst-case upper time bounds. Moreover we consider the monoton...
Stefan Porschen, Ewald Speckenmeyer
GD
2005
Springer
15 years 12 months ago
Drawing Kn in Three Dimensions with One Bend Per Edge
We give a drawing of Kn in three dimensions in which vertices are placed at integer grid points and edges are drawn crossing-free with at most one bend per edge in a volume bounde...
Olivier Devillers, Hazel Everett, Sylvain Lazard, ...
WG
2005
Springer
15 years 12 months ago
Algebraic Operations on PQ Trees and Modular Decomposition Trees
Partitive set families are families of sets that can be quite large, but have a compact, recursive representation in the form of a tree. This tree is a common generalization of PQ...
Ross M. McConnell, Fabien de Montgolfier
APPROX
2004
Springer
120views Algorithms» more  APPROX 2004»
15 years 11 months ago
Simultaneous Source Location
We consider the problem of Simultaneous Source Location – selecting locations for sources in a capacitated graph such that a given set of demands can be satisfied. We give an ex...
Konstantin Andreev, Charles Garrod, Bruce M. Maggs...