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» Solving the feedback vertex set problem on undirected graphs
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COCOA
2008
Springer
13 years 10 months ago
Strong Formulations for 2-Node-Connected Steiner Network Problems
Abstract. We consider a survivable network design problem known as the 2-NodeConnected Steiner Network Problem (2NCON): we are given a weighted undirected graph with a node partiti...
Markus Chimani, Maria Kandyba, Ivana Ljubic, Petra...
WADS
2009
Springer
281views Algorithms» more  WADS 2009»
14 years 3 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
COCOA
2008
Springer
13 years 10 months ago
Multiple Hypernode Hitting Sets and Smallest Two-Cores with Targets
The multiple weighted hitting set problem is to find a subset of nodes in a hypergraph that hits every hyperedge in at least m nodes. We extend the problem to a notion of hypergra...
Peter Damaschke
COCO
2007
Springer
93views Algorithms» more  COCO 2007»
14 years 2 months ago
S-T Connectivity on Digraphs with a Known Stationary Distribution
We present a deterministic logspace algorithm for solving S-T Connectivity on directed graphs if (i) we are given a stationary distribution of the random walk on the graph in whic...
Kai-Min Chung, Omer Reingold, Salil P. Vadhan
WG
2007
Springer
14 years 2 months ago
Minimum-Weight Cycle Covers and Their Approximability
A cycle cover of a graph is a set of cycles such that every vertex is part of exactly one cycle. An L-cycle cover is a cycle cover in which the length of every cycle is in the set ...
Bodo Manthey