[PDF][PDF] Solutions and local stability of the Jacobsthal system of difference equations

A Ghezal, M Balegh, I Zemmouri - AIMS Math, 2024 - aimspress.com
We presented a comprehensive theory for deriving closed-form expressions and
representations of the general solutions for a specific case of systems involving Riccati …

[PDF][PDF] Solvability of a bidimensional system of rational difference equations via Mersenne numbers

A Ghezal, I Zemmouri - Palest. J. Math., 2024 - pjm.ppu.edu
SOLVABILITY OF A BIDIMENSIONAL SYSTEM OF RATIONAL DIFFERENCE EQUATIONS VIA
MERSENNE NUMBERS Page 1 Palestine Journal of Mathematics Vol 13(2)(2024) , 84–93 © …

[PDF][PDF] Global stability and co-balancing numbers in a system of rational difference equations

N Attia, A Ghezal - Electronic Research Archive, 2024 - aimspress.com
This paper investigates both the local and global stability of a system of rational difference
equations and its connection to co-balancing numbers. The study delves into the intricate …

[PDF][PDF] Probabilistic properties and estimation methods for periodic threshold autoregressive stochastic volatility

A Ghezal, O Alzeley - AIMS Mathematics, 2024 - aimspress.com
In an endeavor to encapsulate the dual aspects of volatility progression and periodicity
inherent in autocorrelation frameworks demonstrated by various nonlinear time series, a …

Autoregressive Models with Time-Dependent Coefficients—A Comparison between Several Approaches

R Azrak, G Mélard - Stats, 2022 - mdpi.com
Autoregressive-moving average (ARMA) models with time-dependent (td) coefficients and
marginally heteroscedastic innovations provide a natural alternative to stationary ARMA …

[PDF][PDF] Fourth moment structure of the BL-GARCH (p, q, d) models

A Ghezal, A Zerari, I Zemmouri - pjm.ppu.edu
In this article, we explore a broad class of Bilinear-GARCH processes, abbreviated as BL-
GARCH. Our exclusive focus lies on examining the moment structure of the BL-GARCH …