Results 11 to 20 of about 3,363,294 (297)

On Fractional Symmetric Hahn Calculus

open access: yesMathematics, 2019
In this paper, we study fractional symmetric Hahn difference calculus. The new idea of the symmetric Hahn difference operator, the fractional symmetric Hahn integral, and the fractional symmetric Hahn operators of Riemann−Liouville and Caputo types
Nichaphat Patanarapeelert   +1 more
doaj   +2 more sources

Fractional calculus of periodic distributions [PDF]

open access: yes, 2011
Two approaches for defining fractional derivatives of periodic distributions are presented. The first is a distributional version of the Weyl fractional derivative in which a derivative of arbitrary order of a periodic distribution is defined via Fourier
Lamb, Wilson   +5 more
core   +4 more sources

Differences of fractional order [PDF]

open access: yesMathematics of Computation, 1974
Derivatives of fractional order, D α
Diaz, J. B., Osler, T. J.
openaire   +2 more sources

Estimation of parameters of autoregressive models with fractional differences in the presence of additive noise

open access: yesВестник Самарского университета: Естественнонаучная серия, 2023
For modeling in time series, models with fractional differences are widely used. The best known model is the ARFIMA (autoregressive fractionally integrated moving average) model.
Dmitriy V. Ivanov
doaj   +1 more source

A Fast Fractional Difference Algorithm [PDF]

open access: yesSSRN Electronic Journal, 2013
AbstractWe provide a fast algorithm for calculating the fractional difference of a time series. In standard implementations, the calculation speed (number of arithmetic operations) is of order T2, where T is the length of the time series. Our algorithm allows calculation speed of order TlogT.
Jensen, Andreas Noack   +1 more
openaire   +5 more sources

Fractional transformations of generalised functions [PDF]

open access: yes, 2009
A distributional theory of fractional transformations is developed. A constructive approach, based on the eigenfunction expansion method pioneered by A. H.
Lamb, Wilson   +2 more
core   +4 more sources

Exact Discretization of an Economic Accelerator and Multiplier with Memory

open access: yesFractal and Fractional, 2017
Fractional differential equations of macroeconomics, which allow us to take into account power-law memory effects, are considered. We describe an economic accelerator and multiplier with fading memory in the framework of discrete-time and continuous-time
Valentina V. Tarasova, Vasily E. Tarasov
doaj   +1 more source

Oscillatory behavior of nonlinear Hilfer fractional difference equations

open access: yesAdvances in Difference Equations, 2021
In this paper, we study the oscillation behavior for higher order nonlinear Hilfer fractional difference equations of the type Δ a α , β y ( x ) + f 1 ( x , y ( x + α ) ) = ω ( x ) + f 2 ( x , y ( x + α ) ) , x ∈ N a + n − α , Δ a k − ( n − γ ) y ( x ) |
Tuğba Yalçın Uzun
doaj   +1 more source

On substantial fractional difference operator

open access: yesAdvances in Difference Equations, 2020
In this article, new definitions of fractional substantial sum and difference operators are introduced. Some properties are established and used to generate a fixed point operator for an arbitrary real order substantial system with conditions involving ...
Syed Sabyel Haider, Mujeeb ur Rehman
doaj   +1 more source

Note on fractional difference Gronwall inequalities

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2014
This note is a reaction on a bunch of fractional inequalities that appeared in the last few years, and that are all based on what claims to be a fractional discrete Gronwall inequality.
Michal Fečkan, Michal Pospíšil
doaj   +1 more source

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