Results 31 to 40 of about 239,946 (299)

Seasonal Long Memory in Retail Sales in the G7 Countries

Fractal and Fractional
This article examines the seasonal patterns of retail sales in the G7 nations, a key component of private consumption. Using seasonal fractional integration, we assess whether shocks present a lasting or temporary effect on retail sales trends ...
Luis Alberiko Gil-Alana, Carlos Poza
doaj   +1 more source

Long Memory in Earthquake Time Series: The Case Study of the Geysers Geothermal Field

Frontiers in Earth Science, 2021
The present study aims at proving the existence of long memory (or long-range dependence) in the earthquake process through the analysis of time series of induced seismicity.
S. Barani, L. Cristofaro, M. Taroni, L. A. Gil-Alaña, L. A. Gil-Alaña, G. Ferretti   +5 more
doaj   +1 more source

Exogenous shocks and time-varying price persistence in the EU27

Journal of Applied Economics
This paper analyses monthly price persistence in the EU27 countries over the period 2010–2022 using a fractional integration framework, where the measure of persistence is the fractional differencing parameter d.
Guglielmo Maria Caporale, Luis A. Gil-Alana, Amir Imeri   +2 more
doaj   +1 more source

Fractional order differentiation by integration with Jacobi polynomials [PDF]

, 2012
The differentiation by integration method with Jacobi polynomials was originally introduced by Mboup, Join and Fliess. This paper generalizes this method from the integer order to the fractional order for estimating the fractional order derivatives of ...
Gibaru, Olivier, Laleg-Kirati, Taous-Meriem, Liu, Da-Yan, Perruquetti, Wilfrid   +3 more
core   +4 more sources

Variable order Mittag-Leffler fractional operators on isolated time scales and application to the calculus of variations

, 2018
We introduce new fractional operators of variable order on isolated time scales with Mittag-Leffler kernels. This allows a general formulation of a class of fractional variational problems involving variable-order difference operators.
A Atangana, A Atangana, A Atangana, A Atangana, A Atangana, A Coronel-Escamilla, A Coronel-Escamilla, A Coronel-Escamilla, B Pei, B Ross, Benaoumeur Bayour, C Goodrich, CF Lorenzo, CFM Coimbra, CJ Zúñiga-Aguilar, D Tavares, D Tavares, D Tavares, D Tavares, G Diaz, J Losada, J Tang, JE Solís-Pérez, JF Gómez-Aguilar, JF Gómez-Aguilar, JF Gómez-Aguilar, JF Gómez-Aguilar, K Sheng, LES Ramirez, LES Ramirez, M Caputo, M Caputo, N Benkhettou, Nadia Benkhettou, NRO Bastos, NRO Bastos, NRO Bastos, R Almeida, RB Nelsen, SG Samko, SG Samko, SG Samko, T Abdeljawad, T Abdeljawad, T Abdeljawad, T Abdeljawad, TM Atanackovic, VF Morales-Delgado, Y Hang   +48 more
core   +1 more source

The Lithium Industry and Analysis of the Beta Term Structure of Oil Companies

Risks, 2020
According to a statement made in the BP Energy Outlook report in 2017, most of the world’s liquid fuel (petroleum) is being consumed by the transportation industry. The mechanisms used to stimulate changes in the energy markets are affected by government
Manuel Monge, Luis A. Gil-Alana
doaj   +1 more source

A new Definition of Fractional Derivative and Fractional Integral [PDF]

Kirkuk Journal of Science, 2018
In this paper, we introduce three different definitions of fractional derivatives, namely Riemann-Liouville derivative, Caputo derivative and the new formula Caputo expansion formula, and some basics properties of these derivatives are discussed.
Ahmed M. Kareem
doaj   +1 more source

On an explicit finite difference method for fractional diffusion equations

, 2003
A numerical method to solve the fractional diffusion equation, which could also be easily extended to many other fractional dynamics equations, is considered.
Gorenflo Rudolf, Gorenflo Rudolf, L. Acedo, Morton K., Podlubny Igor, S. B. Yuste   +5 more
core   +1 more source

Radiotherapy Delivery in Deep Inspiration for Pediatric Patients—Final Results of the Phase II Feasibility Study TEDDI

Pediatric Blood &Cancer, EarlyView.
Abstract Introduction The TEDDI trial tested the feasibility and reproducibility of deep‐inspiration breath‐hold (DIBH) in pediatric patients referred for radiotherapy. This report presents final results, including patient‐reported outcomes (PRO) and dosimetric comparison of DIBH and free‐breathing (FB).
Daniella Elisabet Østergaard, Anni Young Lundgaard, Laura Ann Rechner, Danijela Dejanovic, Hanne Krogh Rose, Jolanta Hansen, Leila Vaalavirta, Miia Mokka, Marianne Aznar, Peder Skov Wehner, Lisa Lyngsie Hjalgrim, Maja Vestmø Maraldo   +11 more
wiley   +1 more source

A Model for Persistent Levy Motion

, 1999
We propose the model, which allows us to approximate fractional Levy noise and fractional Levy motion. Our model is based (i) on the Gnedenko limit theorem for an attraction basin of stable probability law, and (ii) on regarding fractional noise as the ...
A.V Chechkin, Bachelier, Blummental, Blummental, Bouchaud, Darling, Kolmogorov, Maejima, Magre, Mandelbrot, Mandelbrot, Mandelbrot, Mantegna, Mantegna, Mantegna, Peng, Rambaldi, Schlesinger, Schlesinger, Taqqu, Umeno, V.Yu Gonchar, West, Wiener, Zaslavsky, Zimbardo   +25 more
core   +2 more sources