This book constitutes the refereed proceedings of the Third International Workshop on Approximation Algorithms for Combinatorial Optimization Problems, APPROX 2000, held in Saarbrücken, Germany in September 2000. The 22 revised full papers presented together with four invited contributions were carefully reviewed and selected from 68 submissions. The topics dealt with include design and analysis of approximation algorithms, inapproximibility results, on-line problems, randomization techniques, average-case analysis, approximation classes, scheduling problems, routing and flow problems, coloring and partitioning, cuts and connectivity, packing and covering, geometric problems, network design, and various applications.

Inhalt

Invited Talks.- Approximation Algorithms That Take Advice.- Instant Recognition of Polynomial Time Solvability, Half Integrality, and 2-Approximations.- Scheduling under Uncertainty: Optimizing against a Randomizing Adversary.- Approximation Algorithms for Facility Location Problems.- Contributed Talks.- An Approximation Algorithm for MAX DICUT with Given Sizes of Parts.- Maximizing Job Benefits On-Line.- Variable Length Sequencing with Two Lengths.- Randomized Path Coloring on Binary Trees.- Wavelength Rerouting in Optical Networks, or the Venetian Routing Problem.- Greedy Approximation Algorithms for Finding Dense Components in a Graph.- Online Real-Time Preemptive Scheduling of Jobs with Deadlines.- On the Relative Complexity of Approximate Counting Problems.- On the Hardness of Approximating NP Witnesses.- Maximum Dispersion and Geometric Maximum Weight Cliques.- New Results for Online Page Replication.- Inapproximability Results for Set Splitting and Satisfiability Problems with No Mixed Clauses.- Approximation Algorithms for a Capacitated Network Design Problem.- An Approximation Algorithm for the Fault Tolerant Metric Facility Location Problem.- Improved Approximations for Tour and Tree Covers.- Approximating Node Connectivity Problems via Set Covers.- Rectangle Tiling.- Primal-Dual Approaches to the Steiner Problem.- On the Inapproximability of Broadcasting Time.- Polynomial Time Approximation Schemes for Class-Constrained Packing Problems.- Partial Servicing of On-Line Jobs.- Factor 4/3 Approximations for Minimum 2-Connected Subgraphs.