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PDCAT
2005
Springer
15 years 3 months ago
Approximating Spanning Trees with Inner Nodes Cost
We consider the practical NP-complete problem of finding a minimum weight spanning tree with both edge weights and inner nodes weights. We present two polynomial time algorithms ...
Rudolf Fleischer, Qi Ge, Jian Li, Shijun Tian, Hai...
DISOPT
2010
132views more  DISOPT 2010»
14 years 10 months ago
General approximation schemes for min-max (regret) versions of some (pseudo-)polynomial problems
While the complexity of min-max and min-max regret versions of most classical combinatorial optimization problems has been thoroughly investigated, there are very few studies abou...
Hassene Aissi, Cristina Bazgan, Daniel Vanderpoote...
SIAMNUM
2010
131views more  SIAMNUM 2010»
14 years 4 months ago
A Rational Interpolation Scheme with Superpolynomial Rate of Convergence
The purpose of this study is to construct a high-order interpolation scheme for arbitrary scattered datasets. The resulting function approximation is an interpolation function when...
Qiqi Wang, Parviz Moin, Gianluca Iaccarino
ENTCS
2002
61views more  ENTCS 2002»
14 years 9 months ago
Effectively Absolute Continuity and Effective Jordan Decomposability
Classically, any absolute continuous real function is of bounded variation and hence can always be expressed as a difference of two increasing continuous functions (socalled Jorda...
Xizhong Zheng, Robert Rettinger, Burchard von Brau...
COCOON
2005
Springer
15 years 3 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