STACS 89

On genuinely time bounded computations.- Unified Algebras and action semantics.- Properties of infinite words : Recent results.- A first order logic for partial functions.- Observational implementations.- On the boundary of a union of Rays.- Dynamic planar point location with optimal query time.- An O(n log n) algorithm for computing a link center in a simple polygon.- Polynomial graph-colorings.- Time-optimal simulations of networks by universal parallel computers.- Classes of picture languages that cannot be distinguished in the chain code concept and deletion of redundant retreats.- Linear numeration systems, ?-developments and finite automata.- A generalization of automatic sequences.- Word problems over traces which are solvable in linear time.- Computing minimum spanning forests on 1- and 2-dimensional processor arrays.- Parallel computation of discrete Voronoi diagrams.- Successive approximation in parallel graph algorithms.- Reversals and alternation.- On the power of parity polynomial time.- Complete problems and strong polynomial reducibilities.- If deterministic and nondeterministic space complexities are equal for log log n then they are also equal for log n.- On the complexity of approximating the independent set problem.- Average number of messages for distributed leader finding in rings of processors.- Time vs bits.- Distributed computing on transitive networks: The torus.- Time is not a healer.- Area efficient methods to increase the reliability of combinatorial circuits.- Fault masking probabilities with single and multiple signature analysis.- Chain properties of rule closures.- It is undecidable whether the Knuth-Bendix completion procedure generates a crossed pair.- Algebraic specifications for domain theory.- The query topology in logic programming.- Testing membership: Beyond permutation groups.- Membership in polynomial ideals over Q is exponential space complete.- Some complexity theoretic aspects of AC rewriting.- Deciding bisimulation equivalences for a class of non-finite-state programs.- Measure of parallelism of distributed computations.- Decidability of weak fairness in petri nets.- New results on the generalized star-height problem.- On the equivalence problem for deterministic multitape automata and transducers.- Deciding equivalence of finite tree automata.- Concatenable segment trees.- Shortest edge-disjoint paths in graphs.- Rounds versus time for the two person pebble game.- AXE: the syntax driven diagram editor for visual languages used in the software engineering environments AxIS.- GraphEd: An interactive graph editor.- SAMPLE a language dependent prototyping environment.- Examining the satisfiability of the formulas of Propositional Dynamic Logic.- Amore: A system for computing automata, MOnoids, and regular expressions.- A proof system for type theory and CCS.- Implementation of a transition semantics for parallel programs with shared variables.