WALCOM: Algorithms and Computation, Third International Workshop, WALCOM 2009, Kolkata, India, February 18-20, 2009. Proceedings

Invited Talks.- A Separator Theorem for String Graphs and Its Applications.- Foundations of Exact Rounding.- Approximating Shortest Paths in Graphs.- Line Transversals and Pinning Numbers.- Computational Geometry.- Algorithms for Computing Diffuse Reflection Paths in Polygons.- Shortest Gently Descending Paths.- All Farthest Neighbors in the Presence of Highways and Obstacles.- Improved Algorithm for a Widest 1-Corner Corridor.- Maximum Neighbour Voronoi Games.- On Exact Solutions to the Euclidean Bottleneck Steiner Tree Problem.- Graph Algorithms.- Colinear Coloring on Graphs.- Recursive Generation of 5-Regular Planar Graphs.- Efficient Enumeration of Ordered Trees with k Leaves (Extended Abstract).- Generating All Triangulations of Plane Graphs (Extended Abstract).- Recognition of Unigraphs through Superposition of Graphs (Extended Abstract).- Random Generation and Enumeration of Proper Interval Graphs.- A Fully Dynamic Graph Algorithm for Recognizing Proper Interval Graphs.- Minmax Tree Cover in the Euclidean Space.- Network Design with Weighted Degree Constraints.- Minimum Cuts of Simple Graphs in Almost Always Linear Time.- The Generalized Stable Allocation Problem.- Crossing-Optimal Acyclic Hamiltonian Path Completion and Its Application to Upward Topological Book Embeddings.- Core and Conditional Core Path of Specified Length in Special Classes of Graphs.- Complexity.- The Planar k-Means Problem is NP-Hard.- On the Computational Complexity of Monotone Constraint Satisfaction Problems.- Parameterized Complexity of Stabbing Rectangles and Squares in the Plane.- Graph Drawing.- Straight-Line Grid Drawings of Label-Constrained Outerplanar Graphs with O(n logn) Area (Extended Abstract).- Matched Drawability of Graph Pairs and of Graph Triples.- An Improved Upward Planarity Testing Algorithm and Related Applications.- Spherical-Rectangular Drawings.- Approximation Algorithms.- The Exemplar Breakpoint Distance for Non-trivial Genomes Cannot Be Approximated.- The Minimal Manhattan Network Problem in Three Dimensions.- Randomized Algorithms.- Shape Matching by Random Sampling.- Object Caching for Queries and Updates.