Mathematical Foundations of Computer Science 1986 : 12th Symposium held at Bratislava, Czechoslovakia, August 25-29, 1986. Proceedings

Why sometimes probabilistic algorithms can be more effective.- Recent results in the theory of rational sets.- Partial interpretations of higher order algebraic types.- Kins of context-free languages.- Algebraic theory of module specifications with constraints.- A semantical model for integration and modularization of rules.- Parallel arithmetic computations: A survey.- An approach to proof checker.- The promise of electronic prototyping.- Systolic arrays: Characterizations and complexity.- Geometric location problems and their complexity.- Developing implicit data structures.- Higher-order arrays and stacks in programming. An application of complexity theory to logics of programs.- Deterministic simulation of idealized parallel computers on more realistic ones.- Relational specifications and observational semantics.- Efficient testing of optimal time adders.- Properties of complexity measures for PRAMs and WARMs.- Iterative systems of equations.- Polynomial complexity of the Newton-Puiseux algorithm.- Unique decipherability for partially commutative alphabet (extended abstract).- The equivalence of finite valued transducers (on HDTOL languages) is decidable.- A fast parallel algorithm for six-colouring of planar graphs.- Quicksort without a stack.- Towards an efficient merging.- Homomorphic realization of automata with compositions.- Refined bounds on the complexity of sorting and selection in d - dimensional space.- On the inherent combinatorial complexity of geometric problems in d - dimensional space.- The evolution of two stacks in bounded space and random walks in a triangle.- P-genericity and strong p-genericity.- Fibonacci numeration systems and rational functions.- Safe implementation equivalence for asynchronous nondeterministic processes.- Grammars with context dependency restricted to synchronization.- Some improved parallelisms for graphs.- A complete inference system for an algebra of regular acceptance models.- Nondeterministic Turing machines with modified acceptance.- Remark on the power of compass.- Regular chain code picture languages of nonlinear descriptional complexity.- An analysis of the nonemptiness problem for classes of reversal-bounded multicounter machines.- A new approach to defining the communication complexity for VLSI.- Lower bounds on the complexity of local circuits.- Optimal sorting of seven element sets.- Undecidable problems concerning generalized pascal triangles of commutative algebras.- Regular augmentation of automata and transducers.- On some types of pseudo-random sequences.- The space complexity of the accessibility problem for undirected graphs of log n bounded genus.- An alternative, priority-free, solution to Post's problem.- Near optimal algorithms for finding minimum Steiner trees on random graphs.- Matrix systems and principal cones of algebraic power series.- Two characterizations of the logarithmic alternation hierarchy.- p-Projection reducibility and the complexity classes ? (nonuniform) and N? (nonuniform).- A proof system to derive eventuality properties under justice hypothesis.- Al-Khowarizmi : A formal system for higher-order logic programming.- One-sided Dyck reduction over two letter alphabet and deterministic context-free languages.- Model and complexity of termination for distributed computations.- Complexity of generalized graph coloring.- The parallel complexity of deadlock detection.- The centers of context-sensitive languages.- A greedy algorithm for constructing shortest common superstrings.- The OI-hierarchy is closed under control.- On the degree of ambiguity of finite automata.- Learning in knowledge based systems, a possibilistic approach.- Proofs that Release Minimum Knowledge.