Sciweavers

OL
2008
82views more  OL 2008»
13 years 10 months ago
An approximation algorithm for network design problems with downwards-monotone demand functions
Building on an existing 2-approximate algorithm for the class of network design problems with downwards-monotone demand functions, many of which are NP-hard, we present an algorith...
Michael Laszlo, Sumitra Mukherjee
OL
2008
65views more  OL 2008»
13 years 11 months ago
The GLOBAL optimization method revisited
Tibor Csendes, László Pál, Jo...
OL
2008
78views more  OL 2008»
13 years 11 months ago
Slopes of shadow prices and Lagrange multipliers
Abstract Manyeconomicmodels andoptimizationproblems generate(endogenous) shadow prices--alias dual variables or Lagrange multipliers. Frequently the "slopes" of resulting...
Sjur Didrik Flåm, Hubertus Th. Jongen, Olive...
OL
2008
56views more  OL 2008»
13 years 11 months ago
Generalized semi-infinite programming: the Symmetric Reduction Ansatz
We introduce the Symmetric Reduction Ansatz at a point from the closure of the feasible set in generalized semi-infinite programming. A corresponding Symmetric Reduction Lemma is s...
Harald Günzel, Hubertus Th. Jongen, Oliver St...
OL
2008
62views more  OL 2008»
13 years 11 months ago
An economic approach to some classical theorems in optimization theory
: This short article offers economically intuitive proofs of the Euler equation and the maximum principle based on one of the best known results in economics, namely that the margi...
Guang-Zhen Sun
OL
2008
54views more  OL 2008»
13 years 11 months ago
On hyperbolicity cones associated with elementary symmetric polynomials
Elementary symmetric polynomials can be thought of as derivative polynomials of En(x) = i=1,...,n xi. Their associated hyperbolicity cones give a natural sequence of relaxations f...
Yuriy Zinchenko
OL
2008
71views more  OL 2008»
13 years 11 months ago
A multi-parametric programming approach for constrained dynamic programming problems
Nuno P. Faísca, Konstantinos I. Kouramas, P...
OL
2008
61views more  OL 2008»
13 years 11 months ago
Note on Mond-Weir type nondifferentiable second order symmetric duality
In this paper, we point out some inconsistencies in the earlier work of Ahmad and Husain (Appl. Math. Lett. 18, 721
Z. Husain, I. Ahmad
OL
2008
79views more  OL 2008»
13 years 11 months ago
A simpler and tighter redundant Klee-Minty construction
By introducing redundant Klee-Minty examples, we have previously shown that the central path can be bent along the edges of the Klee-Minty cubes, thus having 2n - 2 sharp turns in...
Eissa Nematollahi, Tamás Terlaky