Results 61 to 70 of about 40,863 (167)

Gold and silver as safe havens: A fractional integration and cointegration analysis. [PDF]

PLoS One, 2023
Caporale GM, Gil-Alana LA.
europepmc   +1 more source

A new class of operational matrices method for solving fractional neutral pantograph differential equations

Advances in Difference Equations, 2018
This paper uses new fractional integration operational matrices to solve a class of fractional neutral pantograph delay differential equations. A fractional-order function space is constructed where the exact solution lies in, and a set of orthogonal ...
Lei Shi, Xiaohua Ding, Zhong Chen, Qiang Ma   +3 more
doaj   +1 more source

Inequality Persistence of 21 OECD Countries from 1870 to 2020: Linear and Non-Linear Fractional Integration Approaches. [PDF]

Soc Indic Res, 2022
Solarin SA, Lafuente C, Gil-Alana LA, Blanch MJG.   +3 more
europepmc   +1 more source

A New Fractional Integration Operational Matrix of Chebyshev Wavelets in Fractional Delay Systems

Fractal and Fractional, 2019
Fractional integration operational matrix of Chebyshev wavelets based on the Riemann−Liouville fractional integral operator is derived directly from Chebyshev wavelets for the first time.
Iman Malmir
doaj   +1 more source

The persistence of precious metals and oil during the COVID-19 pandemic: evidence from a fractional integration and cointegration approach. [PDF]

Environ Sci Pollut Res Int, 2022
Usman N, Akadiri SS.
europepmc   +1 more source

Dynamic Factor Models and Fractional Integration—With an Application to US Real Economic Activity

Econometrics
This paper makes a twofold contribution. First, it develops the dynamic factor model of by allowing for fractional integration instead of imposing the classical dichotomy between I(0) stationary and I(1) non-stationary series.
Guglielmo Maria Caporale, Luis Alberiko Gil-Alana, Pedro Jose Piqueras Martinez   +2 more
doaj   +1 more source

Realization of fractional order controllers [PDF]

Acta Montanistica Slovaca, 2003
An approach to realizations of fractional-order controllers is presented. The suggested approach is based on the use of continued fraction expansions.
O’Leary Paul, Dorcak Lubomir, Chen YangQuan, Vinagre Blas M., Podlubny Igor, Petras Ivo   +5 more
doaj  

A Long-Memory Model for Multiple Cycles with an Application to the US Stock Market

Mathematics
This paper proposes a long-memory model that includes multiple cycles in addition to the long-run component. Specifically, instead of a single pole or singularity in the spectrum, it allows for multiple poles and, thus, different cycles with different ...
Guglielmo Maria Caporale, Luis Alberiko Gil-Alana   +1 more
doaj   +1 more source

Daily Emissions of CO₂ in the World: A Fractional Integration Approach

Econometrics
In this article, daily CO2 emissions for the years 2019–2022 are examined using fractional integration for Brazil, China, EU-27 (and the UK), India, and the USA.
Luis Alberiko Gil-Alana, Carlos Poza
doaj   +1 more source

Inequalities for Laguerre functions

Journal of Inequalities and Applications, 1997
The main published inequality for Laguerre functions seems to be for Laguerre polynomials only; it is [2: 10.18(3)]: This paper presents several inequalities for Laguerre polynomials and Laguerre functions , most of which do not seem to be in the ...
Love ER
doaj