230 search results - page 21 / 46 » Time Varying Undirected Graphs |
ESA
2005
Springer
15 years 5 months ago
2005
Springer
Abstract. We present new approximation schemes for various classical problems of finding the minimum-weight spanning subgraph in edge-weighted undirected planar graphs that are re...
ISTCS
1993
Springer
15 years 3 months ago
1993
Springer
This thesis introduces a model of a random walk on a colored undirected graph. Such a graph has a single vertex set and distinct sets of edges, each of which has a color. A par...
119
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ALGORITHMICA
1998
14 years 11 months ago
1998
In this paper we give a fully dynamic approximation scheme for maintaining all-pairs shortest paths in planar networks. Given an error parameter ε such that 0 < ε, our algorit...
113
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IJSNET
2007
14 years 11 months ago
2007
: Robustness and security of services like localisation, routing and time synchronisation in Wireless Sensor Networks (WSNs) have been critical issues. Efficient mathematical (gra...
STOC
1996
ACM
15 years 3 months ago
1996
ACM
We significantly improve known time bounds for solving the minimum cut problem on undirected graphs. We use a "semiduality" between minimum cuts and maximum spanning tree...