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» Inapproximability for planar embedding problems
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INFOCOM
2011
IEEE
14 years 1 months ago
Spherical representation and polyhedron routing for load balancing in wireless sensor networks
—In this paper we address the problem of scalable and load balanced routing for wireless sensor networks. Motivated by the analog of the continuous setting that geodesic routing ...
Xiaokang Yu, Xiaomeng Ban, Wei Zeng, Rik Sarkar, X...
WADS
2009
Springer
281views Algorithms» more  WADS 2009»
15 years 4 months ago
The Simultaneous Representation Problem for Chordal, Comparability and Permutation Graphs
Abstract. We introduce the simultaneous representation problem, defined for any graph class C characterized in terms of representations, e.g. any class of intersection graphs. Two...
Krishnam Raju Jampani, Anna Lubiw
CCCG
2006
14 years 10 months ago
On the Maximum Span of Fixed-Angle Chains
Soss proved that it is NP-hard to find the maximum flat span of a fixed-angle polygonal chain: the largest distance achievable between the endpoints in a planar embedding. These f...
Nadia Benbernou, Joseph O'Rourke
COMPGEOM
2009
ACM
15 years 4 months ago
Minimum cuts and shortest homologous cycles
We describe the first algorithms to compute minimum cuts in surface-embedded graphs in near-linear time. Given an undirected graph embedded on an orientable surface of genus g, w...
Erin W. Chambers, Jeff Erickson, Amir Nayyeri
105
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INFOCOM
2007
IEEE
15 years 3 months ago
Face Tracing Based Geographic Routing in Nonplanar Wireless Networks
— Scalable and efficient routing is a main challenge in the deployment of large ad hoc wireless networks. An essential element of practical routing protocols is their accommodat...
Fenghui Zhang, Hao Li, Anxiao Jiang, Jianer Chen, ...