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SIAMDM
2010
95views more  SIAMDM 2010»
15 years 5 days ago
Short Cycle Covers of Graphs with Minimum Degree Three
Tomás Kaiser, Daniel Král', Bernard ...
FOCS
2003
IEEE
15 years 7 months ago
Approximation Algorithms for Asymmetric TSP by Decomposing Directed Regular Multigraphs
A directed multigraph is said to be d-regular if the indegree and outdegree of every vertex is exactly d. By Hall’s theorem one can represent such a multigraph as a combination ...
Haim Kaplan, Moshe Lewenstein, Nira Shafrir, Maxim...
113
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COMBINATORICS
2006
144views more  COMBINATORICS 2006»
15 years 1 months ago
Weighted Zeta Functions of Graph Coverings
We present a decomposition formula for the weighted zeta function of an irregular covering of a graph by its weighted L-functions. Moreover, we give a factorization of the weighte...
Iwao Sato
NETWORKS
2007
15 years 1 months ago
Vertex disjoint routings of cycles over tori
We study the problem of designing a survivable WDM network based on covering the communication requests with subnetworks that are protected independently from each other. We consi...
Jean-Claude Bermond, Min-Li Yu
APPROX
2008
Springer
142views Algorithms» more  APPROX 2008»
15 years 3 months ago
Approximating Maximum Subgraphs without Short Cycles
We study approximation algorithms, integrality gaps, and hardness of approximation, of two problems related to cycles of "small" length k in a given graph. The instance f...
Guy Kortsarz, Michael Langberg, Zeev Nutov