Automata, Languages and Programming 26th International Colloquium, ICALP'99, Prague, Czech Republic, July 11-15, 1999 Proceedings

This book constitutes the refereed proceedings of the 26th International Colloquium on Automata, Languages and Programming, ICALP'99, held in Prague, Czech Republic, in July 1999. The 56 revised full papers presented were carefully reviewed and selected from a total of 126 submissions; also included are 11 inivited contributions. Among the topics addressed are approximation algorithms, algebra and circuits, concurrency, semantics and rewriting, process algebras, graphs, distributed computing, logic of programs, sorting and searching, automata, nonstandard computing, regular languages, combinatorial optimization, automata and logics, string algorithms, and applied logics.

Invited Talks.- Generating Hard Instances of the Short Basis Problem.- Wide Area Computation.- Proof Techniques for Cryptographic Protocols.- Type Structure for Low-Level Programming Languages.- Real Computations with Fake Numbers.- A Model for Associative Memory, a Basis for Thinking and Consciousness.- Numerical Integration with Exact Real Arithmetic.- Observations about the Nature and State of Computer Science.- DNA Computing: New Ideas and Paradigms.- Online Data Structures in External Memory.- From Computational Learning Theory to Discovery Science.- Contributed Papers.- Bounded Depth Arithmetic Circuits: Counting and Closure.- Parametric Temporal Logic for “Model Measuring”.- Communicating Hierarchical State Machines.- Small Pseudo-Random Sets Yield Hard Functions: New Tight Explicit Lower Bounds for Branching Programs.- General Morphisms of Petri Nets (Extended Abstract).- On Some Tighter Inapproximability Results (Extended Abstract).- Decomposition and Composition of Timed Automata.- New Applications of the Incompressibility Method (Extended Abstract).- Mobility Types for Mobile Ambients.- Protein Folding, the Levinthal Paradox and Rapidly Mixing Markov Chains.- Decidable Fragments of Simultaneous Rigid Reachability.- Text Compression Using Antidictionaries.- Non-interactive Zero-Knowledge: A Low-Randomness Characterization of NP (Extended Abstract).- Timed Alternating Tree Automata: The Automata-Theoretic Solution to the TCTL Model Checking Problem.- Space-Time Tradeoffs for Graph Properties.- Boundedness of Reset P/T Nets.- Two-way finite state transducers and monadic second-order logic.- Partially Ordered Regular Languages for Graph Queries.- Deciding First-Order Properties of Locally Tree-Decomposable Graphs.- Comparison of Process Algebra EquivalencesUsing Formats.- Compact Routing Tables for Graphs of Bounded Genus (Extended Abstract).- Computing LOGCFL Certificates.- Efficient Techniques for Maintaining Multidimensional Keys in Linked Data Structures (Extended Abstract).- On the Complements of Partial k-Trees.- Approximation Results for Kinetic Variants of TSP.- Distributed Probabilistic Polling and Applications to Proportionate Agreement.- Bisimulation Equivalence Is Decidable for Normed Process Algebra (Extended abstract).- A Framework for Decidable Metrical Logics.- On the Power of Las Vegas II. Two-Way Finite Automata.- Stable Marriage with Incomplete Lists and Ties.- Average-Case Complexity of Shellsort (Preliminary Version).- Linear-Time Construction of Two-Dimensional Suffix Trees (Extended Abstract).- A Connection between the Star Problem and the Finite Power Property in Trace Monoids (Extended Abstract).- Two Techniques in the Area of the Star Problem.- Approximations by OBDDs and the Variable Ordering Problem.- Simulation Preorder on Simple Process Algebras.- Solos in Concert.- Shortest Anisotropic Paths on Terrains.- Relations between Local and Global Periodicity of Words (Extended Abstract).- Efficient Merging, Construction, and Maintenance of Evolutionary Trees.- Formalizing a Lazy Substitution Proof System for ?-Calculus in the Calculus of Inductive Constructions.- Leader Election by d Dimensional Cellular Automata.- New Upper Bounds for MaxSat.- Polynomial and Rational Evaluation and Interpolation (with Structured Matrices) ?.- Low Redundancy in Static Dictionaries with O(1) Worst Case Lookup Time.- Finite Automata with Generalized Acceptance Criteria.- A Variant of the Arrow Distributed Directory with Low Average Complexity (Extended Abstract).- Closed Freyd- and ?-categories.- TypedExceptions and Continuations Cannot Macro-Express Each Other.- Automata, Power Series, and Coinduction: Taking Input Derivatives Seriously (Extended Abstract).- Accessing Multiple Sequences Through Set Associative Caches.- T(A) = T(B)?.- Many-Valued Logics and Holographic Proofs.- On the Complexity and Inapproximability of Shortest Implicant Problems.- The Wave Propagator Is Turing Computable.- An FPTAS for Agreeably Weighted Variance on a Single Machine (Extended Abstract).- Erratum: Bulk-Synchronous Parallel Multiplication of Boolean Matrices.