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WAOA
2005
Springer
177views Algorithms» more  WAOA 2005»
14 years 1 months ago
Approximation and Complexity of k-Splittable Flows
Given a graph with a source and a sink node, the NP–hard maximum k–splittable flow (MkSF) problem is to find a flow of maximum value with a flow decomposition using at most...
Ronald Koch, Martin Skutella, Ines Spenke
ICALP
2007
Springer
13 years 11 months ago
Efficient Algorithms for Constant Well Supported Approximate Equilibria in Bimatrix Games
Abstract. In this work we study the tractability of well supported approximate Nash Equilibria (SuppNE in short) in bimatrix games. In view of the apparent intractability of constr...
Spyros C. Kontogiannis, Paul G. Spirakis
CORR
2006
Springer
78views Education» more  CORR 2006»
13 years 8 months ago
Efficient algorithms for deciding the type of growth of products of integer matrices
For a given finite set of matrices with nonnegative integer entries we study the growth with t of max{ A1
Raphael M. Jungers, Vladimir Protasov, Vincent D. ...
COCO
2008
Springer
74views Algorithms» more  COCO 2008»
13 years 9 months ago
Lower Bounds and Separations for Constant Depth Multilinear Circuits
We prove an exponential lower bound for the size of constant depth multilinear arithmetic circuits computing either the determinant or the permanent (a circuit is called multiline...
Ran Raz, Amir Yehudayoff
COCOON
2005
Springer
14 years 1 months ago
Complexity and Approximation of Satisfactory Partition Problems
The Satisfactory Partition problem consists of deciding if a given graph has a partition of its vertex set into two nonempty parts such that each vertex has at least as many neighb...
Cristina Bazgan, Zsolt Tuza, Daniel Vanderpooten