Sciweavers

FSTTCS
2010
Springer
13 years 2 months ago
Computationally Sound Abstraction and Verification of Secure Multi-Party Computations
ionally Sound Abstraction and Verification of Secure Multi-Party Computations Michael Backes Saarland University MPI-SWS Matteo Maffei Saarland University Esfandiar Mohammadi Saarl...
Michael Backes, Matteo Maffei, Esfandiar Mohammadi
FSTTCS
2010
Springer
13 years 2 months ago
First-Order Logic with Reachability Predicates on Infinite Systems
This paper focuses on first-order logic (FO) extended by reachability predicates such that the expressiveness and hence decidability properties lie between FO and monadic second-o...
Stefan Schulz
FSTTCS
2010
Springer
13 years 2 months ago
Beyond Hyper-Minimisation---Minimising DBAs and DPAs is NP-Complete
In this paper we study the problem of minimising deterministic automata over finite and infinite words. Deterministic finite automata are the simplest devices to recognise regular...
Sven Schewe
FSTTCS
2010
Springer
13 years 2 months ago
Computing Rational Radical Sums in Uniform TC^0
A fundamental problem in numerical computation and computational geometry is to determine the sign of arithmetic expressions in radicals. Here we consider the simpler problem of d...
Paul Hunter, Patricia Bouyer, Nicolas Markey, Jo&e...
FSTTCS
2010
Springer
13 years 2 months ago
Finding Independent Sets in Unions of Perfect Graphs
ABSTRACT. The maximum independent set problem (MAXIS) on general graphs is known to be NPhard to approximate within a factor of n1-, for any > 0. However, there are many "...
Venkatesan T. Chakaravarthy, Vinayaka Pandit, Samb...
FSTTCS
2010
Springer
13 years 2 months ago
Two Size Measures for Timed Languages
Quantitative properties of timed regular languages, such as information content (growth rate, entropy) are explored. The approach suggested by the same authors is extended to lang...
Eugene Asarin, Aldric Degorre
FSTTCS
2010
Springer
13 years 2 months ago
Combinatorial Problems with Discounted Price Functions in Multi-agent Systems
ABSTRACT. Motivated by economic thought, a recent research agenda has suggested the algorithmic study of combinatorial optimization problems under functions which satisfy the prope...
Gagan Goel, Pushkar Tripathi, Lei Wang
FSTTCS
2010
Springer
13 years 2 months ago
Generalizing the powerset construction, coalgebraically
a is an abstract framework for the uniform study of different kinds of dynamical systems. An endofunctor F determines both the type of systems (F-coalgebras) and a notion of behav...
Alexandra Silva, Filippo Bonchi, Marcello M. Bonsa...
FSTTCS
2010
Springer
13 years 2 months ago
ATL with Strategy Contexts: Expressiveness and Model Checking
We study the alternating-time temporal logics ATL and ATL extended with strategy contexts: these make agents commit to their strategies during the evaluation of formulas, contrary...
Arnaud Da Costa Lopes, François Laroussinie...