Results 21 to 30 of about 39,082 (298)

A renormalization procedure for tensor models and scalar-tensor theories of gravity [PDF]

open access: yes, 2010
Tensor models are more-index generalizations of the so-called matrix models, and provide models of quantum gravity with the idea that spaces and general relativity are emergent phenomena.
Balasubramanian V.   +8 more
core   +2 more sources

Stationary Points—I: One-Dimensional p-Fuzzy Dynamical Systems

open access: yesJournal of Applied Mathematics, 2013
p-Fuzzy dynamical systems are variational systems whose dynamic is obtained by means of a Mamdani type fuzzy rule-based system. In this paper, we will show the 1-dimensional p-fuzzy dynamical systems and will present theorems that establish conditions of
Joao de Deus M. Silva   +3 more
doaj   +1 more source

Logical Entropy of Dynamical Systems—A General Model

open access: yesMathematics, 2017
In the paper by Riečan and Markechová (Fuzzy Sets Syst. 96, 1998), some fuzzy modifications of Shannon’s and Kolmogorov-Sinai’s entropy were studied and the general scheme involving the presented models was introduced.
Abolfazl Ebrahimzadeh   +2 more
doaj   +1 more source

A canonical rank-three tensor model with a scaling constraint [PDF]

open access: yes, 2013
A rank-three tensor model in canonical formalism has recently been proposed. The model describes consistent local-time evolutions of fuzzy spaces through a set of first-class constraints which form an on-shell closed algebra with structure functions.
Sasakura, Naoki
core   +2 more sources

Logical Entropy of Fuzzy Dynamical Systems

open access: yesEntropy, 2016
Recently the logical entropy was suggested by D. Ellerman (2013) as a new information measure. The present paper deals with studying logical entropy and logical mutual information and their properties in a fuzzy probability space.
Dagmar Markechová, Beloslav Riečan
doaj   +1 more source

Dynamical analysis and adaptive fuzzy control for the fractional-order financial risk chaotic system

open access: yesAdvances in Difference Equations, 2020
In this paper, a fractional-order model of a financial risk dynamical system is proposed and the complex behavior of such a system is presented. The basic dynamical behavior of this financial risk dynamic system, such as chaotic attractor, Lyapunov ...
Sukono   +6 more
doaj   +1 more source

Neuro-fuzzy control synthesis for hydrostatic type servoactuators. Experimental results [PDF]

open access: yesINCAS Bulletin, 2009
Continuing recent works of the authors, the paper shows the developing and the application of aneuro-fuzzy control law to the positioning outer loop of a hydrostatic type servoactuator.Experimental results are presented concerning dynamical behavior of ...
Felicia URSU   +5 more
doaj   +1 more source

Logical Entropy and Logical Mutual Information of Experiments in the Intuitionistic Fuzzy Case

open access: yesEntropy, 2017
In this contribution, we introduce the concepts of logical entropy and logical mutual information of experiments in the intuitionistic fuzzy case, and study the basic properties of the suggested measures. Subsequently, by means of the suggested notion of
Dagmar Markechová, Beloslav Riečan
doaj   +1 more source

Fuzzy fractional-order model of the novel coronavirus

open access: yesAdvances in Difference Equations, 2020
In this paper, a novel coronavirus infection system with a fuzzy fractional differential equation defined in Caputo’s sense is developed. By using the fuzzy Laplace method coupled with Adomian decomposition transform, numerical results are obtained for ...
S. Ahmad   +5 more
doaj   +1 more source

A novel impedance-based robust fuzzy sliding mode compliance control for the dexterous robot finger with uncertainties

open access: yesInternational Journal of Advanced Robotic Systems, 2023
To promote the precision and flexibility of the dexterous robot finger, a novel impedance-based robust fuzzy sliding mode control approach is developed.
Jiufang Pei, Siyang Yang
doaj   +1 more source

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