STACS 84 Symposium of Theoretical Aspects of Computer Science Paris, April 11-13, 1984

Key-problems and key-methods in computational geometry.- Some recent results on squarefree words.- Transformations realizing fairness assumptions for parallel programs.- Computing the largest empty rectangle.- Approximation schemes for covering and packing problems in robotics and vlsi.- Covering polygons with minimum number of rectangles.- On expressive interpretations of a Hoare-logic for Clarke's language L4.- Towards executable specifications using conditional axioms.- Proprietes Church-Rosser de systemes de reecriture equationnels ayant la propriete de terminaison faible.- On a general weight of trees.- From expanders to better superconcentrators without cascading.- Locally synchronous complexity in the light of the trans-box method.- A new definition of morphism on Petri nets.- Blocage et vivacité dans les réseaux a pile-file.- Denotational semantics of concurrent programs with shared memory.- Higher order data structures.- Computability in higher types and the universal domain P?.- On the structure of polynomial time degrees.- Optimal layouts of the tree of meshes with vertices on the perimeter of the bounding convex region.- Efficient simulations among several models of parallel computers (extended abstract).- Bornes inferieures sur la complexite des facteurs des mots infinis engendres par morphismes iteres.- Adherence equivalence is decidable for DOL languages.- Pusdown space complexity and related full-A.F.L.s..- Automates a pile sur des alphabets infinis.- Logic programs and many-valued logic.- Algebre de machines et logique temporelle.- Algebraic and topological theory of languages and computation.- A property of three-element codes.- Polynomial time inference of general pattern languages.- On extendibility of unavoidable sets.