Results 21 to 30 of about 3,110 (267)

Quantum Finite Automata and Weighted Automata

open access: yesJ. Autom. Lang. Comb., 2007
10 pages, Preliminary version appears in the Proceedings of ACiD-2005, Texts in Algorithmics series of KCL publications, pp.
M. V. Panduranga Rao, V. Vinay
openaire   +4 more sources

Problems on Finite Automata and the Exponential Time Hypothesis

open access: yesAlgorithms, 2017
We study several classical decision problems on finite automata under the (Strong) Exponential Time Hypothesis. We focus on three types of problems: universality, equivalence, and emptiness of intersection.
Henning Fernau, Andreas Krebs
doaj   +1 more source

An Easy to Check Characterization of Positive Expansivity for Additive Cellular Automata Over a Finite Abelian Group

open access: yesIEEE Access, 2023
Additive cellular automata over a finite abelian group are a wide class of cellular automata (CA) that are able to exhibit most of the complex behaviors of general CA and they are often exploited for designing applications in different practical contexts.
Alberto Dennunzio   +2 more
doaj   +1 more source

Generalized Results on Monoids as Memory [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2017
We show that some results from the theory of group automata and monoid automata still hold for more general classes of monoids and models. Extending previous work for finite automata over commutative groups, we demonstrate a context-free language that ...
Özlem Salehi   +2 more
doaj   +1 more source

On injectivity of quantum finite automata [PDF]

open access: yesJournal of Computer and System Sciences, 2021
We consider notions of freeness and ambiguity for the acceptance probability of Moore-Crutchfield Measure Once Quantum Finite Automata (MO-QFA). We study the injectivity problem of determining if the acceptance probability function of a MO-QFA is injective over all input words, i.e., giving a distinct probability for each input word.
Paul C. Bell, Mika Hirvensalo
openaire   +5 more sources

On the Existence of Universal Finite or Pushdown Automata [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2012
We investigate the (non)-existence of universal automata for some classes of automata, such as finite automata and pushdown automata, and in particular the influence of the representation and encoding function.
Manfred Kudlek
doaj   +1 more source

Finite automata with multiplication

open access: yesTheoretical Computer Science, 1976
AbstractA finite automaton with multiplication (FAM) is a finite automaton with a register which is capable of holding any positive rational number. The register can be multiplied by any of a fixed number of rationals and can be tested for value 1. Closure properties and decision problems for various types of FAM's (e.g.
Oscar H. Ibarra   +2 more
openaire   +1 more source

Measuring cones and other thick subsets in free groups [PDF]

open access: yesInternational Journal of Group Theory, 2018
In this paper we investigate the special automata over finite rank free groups and estimate asymptotic characteristics of sets they accept‎. ‎We show how one can decompose an arbitrary regular subset of a finite rank free group into disjoint union of ...
Elizaveta Frenkel   +1 more
doaj   +1 more source

To some structural properties of ∞ - languages

open access: yesRatio Mathematica, 2022
Properties of catenation of sequences of finite (words) and infinite (  lengths are largely studied in formal language theory. These operations are derived from the mechanism how they are accepted or generated by the corresponding devices.
Ivan Mezník
doaj   +1 more source

Finite automata over algebraic structures: models and some methods of analysis [PDF]

open access: yesComputer Science Journal of Moldova, 2015
In this paper some results of research in two new trends of finite automata theory are presented. For understanding the value and the aim of these researches some short retrospective analysis of development of finite automata theory is given.
Volodymyr V. Skobelev   +1 more
doaj  

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