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» A study of 3-arc graphs
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STOC
1998
ACM
129views Algorithms» more  STOC 1998»
15 years 10 months ago
Planar Map Graphs
We introduce and study a modi ed notion of planarity, in which two regions of a map are considered adjacent when they share any point of their boundaries not an edge, as standard...
Zhi-Zhong Chen, Michelangelo Grigni, Christos H. P...
COCOON
2006
Springer
15 years 10 months ago
A Detachment Algorithm for Inferring a Graph from Path Frequency
: Inferring graphs from path frequency has been studied as an important problem which has a potential application to drug design and elucidation of chemical structures. Given a mul...
Hiroshi Nagamochi
ISAAC
2000
Springer
135views Algorithms» more  ISAAC 2000»
15 years 10 months ago
On Approximating Minimum Vertex Cover for Graphs with Perfect Matching
It has been a challenging open problem whether there is a polynomial time approximation algorithm for the Vertex Cover problem whose approximation ratio is bounded by a constant l...
Jianer Chen, Iyad A. Kanj
DIALM
2005
ACM
104views Algorithms» more  DIALM 2005»
15 years 8 months ago
Information dissemination in highly dynamic graphs
We investigate to what extent flooding and routing is possible if the graph is allowed to change unpredictably at each time step. We study what minimal requirements are necessary...
Regina O'Dell, Roger Wattenhofer
CCCG
2009
15 years 7 months ago
On Directed Graphs with an Upward Straight-line
In this paper we study the problem of computing an upward straight-line embedding of a directed graph G into a point set S, i.e. a planar drawing of G such that each vertex is map...
Carla Binucci, Emilio Di Giacomo, Walter Didimo, A...