Results 31 to 40 of about 471,067 (339)

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

An analytical method for well-formed workflow/Petri net verification of classical soundness

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2014
In this paper we consider workflow nets as dynamical systems governed by ordinary difference equations described by a particular class of Petri nets. Workflow nets are a formal model of business processes.
Clempner Julio
doaj   +1 more source

An Application of the Feferman-Vaught Theorem to Automata and Logics for Words over an Infinite Alphabet [PDF]

open access: yesLogical Methods in Computer Science, 2008
We show that a special case of the Feferman-Vaught composition theorem gives rise to a natural notion of automata for finite words over an infinite alphabet, with good closure and decidability properties, as well as several logical characterizations.
Alexis Bès
doaj   +1 more source

Decidability of second-order theories and automata on infinite trees

open access: yes, 1968
Introduction. In this paper we solve the decision problem of a certain secondorder mathematical theory and apply it to obtain a large number of decidability results.
M. Rabin
semanticscholar   +1 more source

DECIDABILITY IN LOCAL AND GLOBAL FIELDS

open access: yesInternational Congress of Mathematicans, 2019
This lecture highlights some recent advances on classical decidability issues in local and global (cid:28)elds. 2010 Mathematics Subject Classi(cid:28)cation: Primary 11U05; Secondary: 03B25, 11F85, 12J10, 12L05.
J. Koenigsmann
semanticscholar   +1 more source

Decidability and Undecidability Results for Propositional Schemata [PDF]

open access: yesJournal of Artificial Intelligence Research, 2014
We define a logic of propositional formula schemata adding to the syntax of propositional logic indexed propositions (e.g., pi) and iterated connectives ∨ or ∧ ranging over intervals parameterized by arithmetic variables (e.g., ∧i-1n pi, where n is a ...
Vincent Aravantinos   +2 more
semanticscholar   +1 more source

Trees over Infinite Structures and Path Logics with Synchronization [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2011
We provide decidability and undecidability results on the model-checking problem for infinite tree structures. These tree structures are built from sequences of elements of infinite relational structures.
Alex Spelten   +2 more
doaj   +1 more source

The Complexity of Combinations of Qualitative Constraint Satisfaction Problems [PDF]

open access: yesLogical Methods in Computer Science, 2020
The CSP of a first-order theory $T$ is the problem of deciding for a given finite set $S$ of atomic formulas whether $T \cup S$ is satisfiable. Let $T_1$ and $T_2$ be two theories with countably infinite models and disjoint signatures.
Manuel Bodirsky, Johannes Greiner
doaj   +1 more source

Recent Developments on Insertion-Deletion Systems [PDF]

open access: yesComputer Science Journal of Moldova, 2010
This article gives an overview of the recent developments in the study of the operations of insertion and deletion. It presents the origin of these operations, their formal definition and a series of results concerning language properties, decidability ...
Sergey Verlan
doaj  

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