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Comparative Modelling of Price Volatility in Nigerian Crude Oil Markets Using Symmetric and Asymmetric GARCH Models

Deebom Zorle Dum, Mazi Yellow Dimkpa, Chims Benjamin Ele, Richard Igbudu Chinedu & George Laurretta Emugha · Asian Research Journal of Mathematics · 2021

The study aimed at developing an appropriate GARCH model for modelling in Nigerian Crude Oil Prices Markets using symmetric and Asymmetric GARCH models while the specific objectives of the study include to: build an appropriate Symmetric and asymmetric Generalized Autoregressive...

Open access Research Article 10.9734/arjom/2021/v17i330282

Estimation of the Residuals Entropy Function of Inverse Weibull Distribution Based on Generalized Type-II Hybrid Censored Samples

Moshera A. M. Ahmad · Asian Research Journal of Mathematics · 2021

Shannon’s entropy plays important role in the information theory. However, it can’t be applied to systems which have survived for some time. Therefore, the concept of residual entropy was developed. In this paper, the estimation of the entropy of a two-parameter inverse Weibull d...

Open access Research Article 10.9734/arjom/2021/v17i330281

Comparison of the Performance of the SANN, SARIMA and ARIMA Models for Forecasting Quarterly GDP of Nigeria

Chukwudike C. Nwokike & Emmanuel W. Okereke · Asian Research Journal of Mathematics · 2021

This research aimed at modelling and forecasting the quarterly GDP of Nigeria using the Seasonal Artificial Neural Network (SANN), SARIMA and Box-Jenkins models as well as comparing their predictive performance. The three models mentioned earlier were successfully fitted to the d...

Open access Research Article 10.9734/arjom/2021/v17i330280

A Bioeconomic Analysis of a Renewable Resource in the Presence of Illegal, Unreported and Unregulated Fishing

Mahmud Ibrahim · Asian Research Journal of Mathematics · 2021

The issue of illegal, unreported and unregulated (IUU) fishing is of prime concern to fisheries in developing countries where the regulatory regimes are often weak. This study proposes a Gordon-Schaefer bioeconomic model with non-constant catchability and nonlinear cost to study...

Open access Research Article 10.9734/arjom/2021/v17i230279

Modified Adomian Decomposition Method for the Solution of Integro-Differential Equations

R. O. Ijaiya, O. A. Taiwo & K. A. Bello · Asian Research Journal of Mathematics · 2021

This paper is concerned with modification of the Adomian Decomposition Method for solving linear and non-linear Volterra and Volterra-Fredholm Integro-Differential equations. The Modified form of ADM was carried out by replacing the Adomian polynomials constructed in the conventi...

Open access Research Article 10.9734/arjom/2021/v17i230278

H-PSO Routing Optimization Model for Zoomlion Ghana Limited

Justice Kangah, Emmanuel Ayitey & Frank B. K. Twenefour · Asian Research Journal of Mathematics · 2021

This research combines Particle Swarm Optimization (PSO) with Crossover and Mutation Operators of Genetic Algorithm (GA) to produce a hybrid optimization algorithm to solve a routing problem identified at Zoomlion Ghana Limited, Sekondi Takoradi branch. PSO is known to converge p...

Open access Research Article 10.9734/arjom/2021/v17i230276

Bayes Estimators of Exponentiated Inverse Rayleigh Distribution using Lindleys Approximation

Bashiru Omeiza Sule, Taiwo Mobolaji Adegoke & Kafayat Tolani Uthman · Asian Research Journal of Mathematics · 2021

In this paper, Bayes estimators of the unknown shape and scale parameters of the Exponentiated Inverse Rayleigh Distribution (EIRD) have been derived using both the frequentist and bayesian methods. The Bayes theorem was adopted to obtain the posterior distribution of the shape a...

Open access Research Article 10.9734/arjom/2021/v17i230274

Bank Distress Prediction Model for Botswana

Hassan Kablay & Victor Gumbo · Asian Research Journal of Mathematics · 2021

"Financial distress" has many dierent meanings but generally it is said to be a state of unhealthy condition. Botswana's banking system comprises of commercial, development and savings banks. None of these types of banks has actually failed but rather some of them have experience...

Open access Research Article 10.9734/arjom/2021/v17i230273

Investigating the Level of the Tenth-grade Students’ Self-Efficacy in Mathematics and its Impact on their Performance: A Study in Pemagatshel District

Pema Norbu & Pema Dukpa · Asian Research Journal of Mathematics · 2021

The study aimed at finding out the level of Mathematics self-efficacy and its relationship with the Mathematics performance of tenth-grade students. The study used a quantitative method.  The data was collected from one middle secondary school and three central schools under the...

Open access Research Article 10.9734/arjom/2021/v17i230272

On Generalized Third-Order Jacobsthal Numbers

Evren Eyican Polatlı & Yüksel Soykan · Asian Research Journal of Mathematics · 2021

In this paper, we investigate the generalized third order Jacobsthal sequences and we deal with, in detail, four special cases, namely, third order Jacobsthal, third order Jacobsthal-Lucas, modified third order Jacobsthal, third order Jacobsthal Perrin sequences. We present Binet...

Open access Research Article 10.9734/arjom/2021/v17i230270

On the Existence of Time Delay for Rotating Beam with Proportional–Derivative Controller

Y. A. Amer, Taher A. Bahnasy & Ashraf M. Elmhlawy · Asian Research Journal of Mathematics · 2021

A rotating beam at varying speed mathematical model is studied. Multiple time scales method is applied to the nonlinear system of differential equations and investigated the system behavior approximate solution in the instance of resonance case. We studied the system in case of a...

Open access Research Article 10.9734/arjom/2021/v17i130268