This book constitutes the refereed proceedings of the 25th International Workshop on Graph-Theorie Concepts in Computer Science WG'99, held at the Centre Stefano Frascini on Monte Verita, Ascona, Switzerland in June 1999. The 33 revised full papers presented together with four invited contributions were carefully reviewed and selected from 64 papers submitted. The papers provide a wealth of new results for various graph classes, graph computations, graph algorithms and graph-theoretical applications in a variety of fields.

Inhalt

Silver Graphs: Achievements and New Challenges.- Online Algorithms: A Study of Graph-Theoretic Concepts.- Discrete Optimization Methods for Packing Problems in Two and Three Dimensions - With Applications in the Textile and Car Manufacturing Industries.- Informatica, Scuola, Communità: Uno Sguardo dall' Occhio del Ciclone.- Proximity-Preserving Labeling Schemes and Their Applications.- Euler Is Standing in Line.- Lower Bounds for Approximating Shortest Superstrings over an Alphabet of Size 2.- Complexity Classification of Some Edge Modification Problems.- On Minimum Diameter Spanning Trees under Reload Costs.- Induced Matchings in Regular Graphs and Trees.- Mod-2 Independence and Domination in Graphs.- NLC2-Decomposition in Polynomial Time.- On the Nature of Structure and Its Identification.- On the Clique-Width of Perfect Graph Classes.- An Improved Algorithm for Finding Tree Decompositions of Small Width.- Efficient Analy sis of Graphs with Small Minimal Separators.- Generating All the Minimal Separators of a Graph.- Two Broadcasting Problems in FaultyHypercubes.- Routing Permutations in the Hypercube.- An Optimal Fault-Tolerant Routing for Triconnected Planar Graphs.- Optimal Irreversible Dy namos in Chordal Rings.- Recognizing Bipartite Incident-Graphs of Circulant Digraphs.- Optimal Cuts for Powers of the Petersen Graph.- Dihamiltonian Decomposition of Regular Graphs with Degree Three.- Box-Rectangular Drawings of Plane Graphs.- A Multi-Scale Algorithm for Drawing Graphs Nicely.- All Separating Triangles in a Plane Graph Can Be Optimally "Broken" in Poly nomial Time.- Linear Orderings of Random Geometric Graphs.- Finding Smallest Supertrees Under Minor Containment.- Vertex Cover: Further Observations and Further Improvements.- On the Hardness of Recognizing Bundles in Time Table Graphs.- Optimal Solutions for Frequency Assignment Problems via Tree Decomposition.- Fixed-Parameter Complexity of ?-Labelings.- Linear Time Algorithms for Hamiltonian Problems on (Claw,Net)-Free Graphs.- On Claw-Free Asteroidal Triple-Free Graphs.- Vertex Partitioning of Crown-Free Interval Graphs.- Triangulated Neighbourhoods in C 4-Free Berge Graphs.