Foundations of Software Technology and Theoretical Computer Science

This book constitutes the refereed proceedings of the 19th Conference on Foundations of Software Technology and Theoretical Computer Science, FSTTCS'99, held in Chennai, India, in December 1999.The 30 revised full papers presented were carefully reviewed and selected from a total of 84 submissions. Also included are six invited contributions. The papers presented address all current issues in theoretical computer science and programming theory.

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Invited Talk 1.- Recent Developments in the Theory of Arrangements of Surfaces.- Session 1(a).- Dynamic Compressed Hyperoctrees with Application to the N-body Problem.- Largest Empty Rectangle among a Point Set.- Session 1(b).- Renaming Is Necessary in Timed Regular Expressions.- Product Interval Automata: A Subclass of Timed Automata.- Session 2(a).- The Complexity of Rebalancing a Binary Search Tree.- Fast Allocation and Deallocation with an Improved Buddy System.- Session 2(b).- Optimal Bounds for Transformations of ?-Automata.- CTL+ Is Exponentially More Succinct than CTL.- Invited Talk 2.- A Top-Down Look at a Secure Message.- Session 3.- Explaining Updates by Minimal Sums.- A Foundation for Hybrid Knowledge Bases.- Session 4.- Hoare Logic for Mutual Recursion and Local Variables.- Invited Talk 3.- Explicit Substitutions and Programming Languages.- Session 5(a).- Approximation Algorithms for Routing and Call Scheduling in All-Optical Chains and Rings.- A Randomized Algorithm for Flow Shop Scheduling.- Session 5(b).- Synthesizing Distributed Transition Systems from Global Specifications.- Beyond Region Graphs: Symbolic Forward Analysis of Timed Automata.- Session 6.- Implicit Temporal Query Languages: Towards Completeness.- On the Undecidability of Some Sub-classical First-Order Logics.- Invited Talk 4.- How to Compute with DNA.- Session 7(a).- A High Girth Graph Construction and a Lower Bound for Hitting Set Size for Combinatorial Rectangles.- Protecting Facets in Layered Manufacturing.- Session 7(b).- The Receptive Distributed ?-Calculus.- Series and Parallel Operations on Pomsets.- Session 8.- Unreliable Failure Detectors with Limited Scope Accuracy and an Application to Consensus.- Invited Talk 5.- Graph Isomorphism: Its Complexity and Algorithms.- Session 9(a).- Computing with Restricted Nondeterminism: The Dependence of the OBDD Size on the Number of Nondeterministic Variables.- Lower Bounds for Linear Transformed OBDDs and FBDDs.- Session 9(b).- A Unifying Framework for Model Checking Labeled Kripke Structures, Modal Transition Systems, and Interval Transition Systems.- Graded Modalities and Resource Bisimulation.- Session 10(a).- The Non-recursive Power of Erroneous Computation.- Analysis of Quantum Functions.- Session 10(b).- On Sets Growing Continuously.- Model Checking Knowledge and Time in Systems with Perfect Recall.- FST&TCS - ISAAC Joint Session Talks.- The Engineering of Some Bipartite Matching Programs.