Results 31 to 40 of about 7,198 (311)

Reachability and liveness in parametric timed automata [PDF]

open access: yesLogical Methods in Computer Science, 2022
We study timed systems in which some timing features are unknown parameters. Parametric timed automata (PTAs) are a classical formalism for such systems but for which most interesting problems are undecidable.
Étienne André   +2 more
doaj   +1 more source

Da metamatemática para a ciência cognitiva From metamathematics to Cognitive Science

open access: yesTrans/Form/Ação, 1999
Neste artigo, propõe-se uma configuração possível para a transição histórico-filosófica de temas investigados no domínio da metamatemática para o domínio da Ciência Cognitiva funcionalista neurocomputacional. A descrição de tal transição é feita por meio
Henrique de Morais Ribeiro
doaj   +1 more source

Trace Equivalence Decision: Negative Tests and Non-determinism [PDF]

open access: yes, 2011
We consider security properties of cryptographic protocols that can be modeled using the notion of trace equivalence. The notion of equivalence is crucial when specifying privacy-type properties, like anonymity, vote-privacy, and unlinkability.
Hubert Comon-Lundh   +5 more
core   +1 more source

A conceptual proposal on the undecidability of the distribution law of prime numbers and theoretical consequences

open access: yesRatio Mathematica, 2019
Within the conceptual framework of number theory, we consider prime numbers and the classic still unsolved problem to find a complete law of their distribution.
Gianfranco Minati
doaj   +1 more source

Decidability for some justification logics with negative introspection [PDF]

open access: yes, 2013
Justification logics are modal logics that include justifications for the agent's knowledge. So far, there are no decidability results available for justification logics with negative introspection.
Studer, Thomas
core   +1 more source

Observing the Observer (II): Deciding When to Decide [PDF]

open access: yesPLoS ONE, 2010
In a companion paper [1], we have presented a generic approach for inferring how subjects make optimal decisions under uncertainty. From a Bayesian decision theoretic perspective, uncertain representations correspond to “posterior” beliefs, which result from integrating (sensory) information with subjective “prior” beliefs.
Daunizeau, J   +5 more
openaire   +7 more sources

Knowledge to Manage the Knowledge Society: The Concept of Theoretical Incompleteness

open access: yesSystems, 2016
After having outlined the essential differences between non-complex systems and complex systems we briefly recall the conceptual approaches considered by the pre-complexity General Systems Theory introduced by Von Bertalanffy in 1968 and those of the ...
Gianfranco Minati
doaj   +1 more source

Undecidable problems concerning densities of languages [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2005
In this paper we prove that the question whether a language presented by a context free grammar has density, is undecidable. Moreover we show that there is no algorithm which, given two unambiguous context free grammars on input, decides whether the ...
Jakub Kozik
doaj   +1 more source

Number conserving cellular automata: new results on decidability and dynamics [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2003
This paper is a survey on our recent results about number conserving cellular automata. First, we prove the linear time decidability of the property of number conservation. The sequel focuses on dynamical evolutions of number conserving cellular automata.
Bruno Durand   +3 more
doaj   +1 more source

Equivalence Problems for Tree Transducers: A Brief Survey [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2014
The decidability of equivalence for three important classes of tree transducers is discussed. Each class can be obtained as a natural restriction of deterministic macro tree transducers (MTTs): (1) no context parameters, i.e., top-down tree transducers, (
Sebastian Maneth
doaj   +1 more source

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