Sciweavers

LICS
2000
IEEE
14 years 3 months ago
Complete Axioms for Categorical Fixed-Point Operators
We give an axiomatic treatment of fixed-point operators in categories. A notion of iteration operator is defined, embodying the equational properties of iteration theories. We p...
Alex K. Simpson, Gordon D. Plotkin
LICS
2000
IEEE
14 years 3 months ago
A Model for Impredicative Type Systems, Universes, Intersection Types and Subtyping
We introduce a new model based on coherence spaces for interpreting large impredicative type systems such as the Extended Calculus of Constructions (ECC). Moreover, we show that t...
Alexandre Miquel
LICS
2000
IEEE
14 years 3 months ago
The Role of Decidability in First Order Separations over Classes of Finite Structures
We establish that the decidability of the first order theory of a class of finite structures ¢ is a simple and useful condition for guaranteeing that the expressive power of FO...
Steven Lindell, Scott Weinstein
LICS
2000
IEEE
14 years 3 months ago
A Theory of Bisimulation for a Fragment of Concurrent ML with Local Names
Concurrent ML is an extension of Standard ML with π-calculus-like primitives for multi-threaded programming. CML has a reduction semantics, but to date there has been no labelled...
Alan Jeffrey, Julian Rathke
LICS
2000
IEEE
14 years 3 months ago
Virtual Symmetry Reduction
We provide a general method for ameliorating state explosion via symmetry reduction in certain asymmetric systems, such as systems with many similar, but not identical, processes....
E. Allen Emerson, John Havlicek, Richard J. Trefle...
LICS
2000
IEEE
14 years 3 months ago
Game Semantics and Subtyping
While Game Semantics has been remarkably successful at g, often in a fully abstract manner, a wide range of features of programming languages, there has to date been no attempt at...
Juliusz Chroboczek
LICS
2000
IEEE
14 years 3 months ago
Models for Name-Passing Processes: Interleaving and Causal
We study syntax-free models for name-passing processes. For interleaving semantics, we identify the indexing structure required of an early labelled transition system to support t...
Gian Luca Cattani, Peter Sewell
LICS
2000
IEEE
14 years 3 months ago
View-Based Query Processing and Constraint Satisfaction
Diego Calvanese, Giuseppe De Giacomo, Maurizio Len...
LICS
2000
IEEE
14 years 3 months ago
Automatic Structures
We study definability and complexity issues for automatic and ω-automatic structures. These are, in general, infinite structures but they can be finitely presented by a collec...
Achim Blumensath, Erich Grädel