Results 1 to 10 of about 58,702 (266)

TEMPERED FRACTIONAL CALCULUS. [PDF]

open access: yesJ Comput Phys, 2015
Fractional derivatives and integrals are convolutions with a power law. Multiplying by an exponential factor leads to tempered fractional derivatives and integrals. Tempered fractional diffusion equations, where the usual second derivative in space is replaced by a tempered fractional derivative, govern the limits of random walk models with an ...
Meerschaert MM, Sabzikar F, Chen J.
europepmc   +4 more sources

Fractional Vector Calculus and Fractional Maxwell's Equations [PDF]

open access: yesAnnals of Physics, 2011
The theory of derivatives and integrals of non-integer order goes back to Leibniz, Liouville, Grunwald, Letnikov and Riemann. The history of fractional vector calculus (FVC) has only 10 years. The main approaches to formulate a FVC, which are used in the
Belleguie   +55 more
core   +3 more sources

General Fractional Calculus in Multi-Dimensional Space: Riesz Form

open access: yesMathematics, 2023
An extension of the general fractional calculus (GFC) is proposed as a generalization of the Riesz fractional calculus, which was suggested by Marsel Riesz in 1949.
Vasily E. Tarasov
doaj   +1 more source

Fractional calculus in pharmacokinetics [PDF]

open access: yesJournal of Pharmacokinetics and Pharmacodynamics, 2017
We are witnessing the birth of a new variety of pharmacokinetics where non-integer-order differential equations are employed to study the time course of drugs in the body: this is dubbed "fractional pharmacokinetics." The presence of fractional kinetics has important clinical implications such as the lack of a half-life, observed, for example with the ...
Pantelis Sopasakis   +3 more
openaire   +4 more sources

General Fractional Vector Calculus

open access: yesMathematics, 2021
A generalization of fractional vector calculus (FVC) as a self-consistent mathematical theory is proposed to take into account a general form of non-locality in kernels of fractional vector differential and integral operators.
Vasily E. Tarasov
doaj   +1 more source

On the solutions of some fractional q-differential equations with the Riemann-Liouville fractional q-derivative [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2021
This paper is devoted to explicit and numerical solutions to linear fractional q -difference equations and the Cauchy type problem associated with the Riemann-Liouville fractional q -derivative in q -calculus.
S. Shaimardan, N.S. Tokmagambetov
doaj   +2 more sources

Fuzzy clustering to classify several regression models with fractional Brownian motion errors

open access: yesAlexandria Engineering Journal, 2020
Clustering regression models fitted on the dataset is one of the most ubiquitous issues in different fields of sciences. In this research, fuzzy clustering method is used to cluster regression models with fractional Brownian motion errors that can be ...
Mohammad Reza Mahmoudi   +2 more
doaj   +1 more source

A Stochastic Fractional Calculus with Applications to Variational Principles

open access: yesFractal and Fractional, 2020
We introduce a stochastic fractional calculus. As an application, we present a stochastic fractional calculus of variations, which generalizes the fractional calculus of variations to stochastic processes.
Houssine Zine, Delfim F. M. Torres
doaj   +1 more source

Enhancing the Mathematical Theory of Nabla Tempered Fractional Calculus: Several Useful Equations

open access: yesFractal and Fractional, 2023
Although many applications of fractional calculus have been reported in literature, modeling the physical world using this technique is still a challenge. One of the main difficulties in solving this problem is that the long memory property is necessary,
Yiheng Wei   +3 more
doaj   +1 more source

On the Variable Order Fractional Calculus Characterization for the Hidden Variable Fractal Interpolation Function

open access: yesFractal and Fractional, 2022
In this study, the variable order fractional calculus of the hidden variable fractal interpolation function is explored. It extends the constant order fractional calculus to the case of variable order. The Riemann–Liouville and the Weyl–Marchaud variable
Valarmathi Raja, Arulprakash Gowrisankar
doaj   +1 more source

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