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LICS
2010
IEEE
13 years 3 months ago
Alternating Timed Automata over Bounded Time
Alternating timed automata are a powerful extension of classical Alur-Dill timed automata that are closed under all Boolean operations. They have played a key role, among others, ...
Mark Jenkins, Joël Ouaknine, Alexander Rabino...
LICS
2010
IEEE
13 years 3 months ago
Addition-Invariant FO and Regularity
We consider formulas which, in addition to the symbols in the vocabulary, may use two designated symbols ≺ and + that must be interpreted as a linear order and its associated ad...
Nicole Schweikardt, Luc Segoufin
LICS
2010
IEEE
13 years 3 months ago
Weak Equivalences in Psi-Calculi
Psi-calculi extend the pi-calculus with nominal datatypes to represent data, communication channels, and logics for facts and conditions. This general framework admits highly expr...
Magnus Johansson, Jesper Bengtson, Joachim Parrow,...
LICS
2010
IEEE
13 years 3 months ago
The Expressive Power of Synchronizations
A synchronization is a mechanism allowing two or more processes to perform actions at the same time. We study the expressive power of synchronizations gathering more and more proc...
Cosimo Laneve, Antonio Vitale
LICS
2010
IEEE
13 years 3 months ago
Querying the Guarded Fragment
Vince Bárány, Georg Gottlob, Martin ...
LICS
2010
IEEE
13 years 3 months ago
On the Expressivity of Symmetry in Event Structures
—This paper establishes a bridge between presheaf models for concurrency and the more operationally-informative world of event structures. It concentrates on a particular preshea...
Sam Staton, Glynn Winskel
LICS
2010
IEEE
13 years 3 months ago
Highly Acyclic Groups, Hypergraph Covers and the Guarded Fragment
We construct finite groups whose Cayley graphs have large girth even w.r.t. a discounted distance measure that contracts arbitrarily long sequences of edges from the same colour ...
Martin Otto
LICS
2010
IEEE
13 years 3 months ago
The Emptiness Problem for Tree Automata with Global Constraints
We define tree automata with global constraints (TAGC), generalizing the well-known class of tree automata with global equality and disequality constraints [14] (TAGED). TAGC can...
Luis Barguñó, Carles Creus, Guillem ...