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193 articles
141
Research Article DOI: 10.67897/njma.2016.ejw7okcl

Block Hybrid Method for Solution of Fourth Order Ordinary Differential Equations

O. A. Akinfenwa*, H. A. Ogunseye, S. A. Okunuga

In this paper a block hybrid method of order seven for the direct solution of fourth-order ordinary differential equations is presented. The derivation of the method uses interpolation and col-location procedures to obtain the main method and additional methods from the same continuous scheme. The continuous representation of the integrators permit us to differentiate and evaluate at both grid and...

Jun, 2016 pp. 140-150 5 views 6 downloads
142
Research Article DOI: 10.67897/njma.2019.rv8yr82w

On the Logistic Regression of Prevalence of Malaria Fever with Complications

P. E. Omaku*, S. I. Jerome

Logistic regression is used to evaluate the e ect of Malariacomplicated by Typhoid, Hypertension and HIV on covariatesAge and sex. Three sets of models were fitted with regards tothe complications. Results indicate that the e ect of sex for allcomplications were not significant, when Malaria is complicatedwith Typhoid; age was significant for patients who are less than19 years and above 50 years o...

Dec, 2019 pp. 147-155 6 views 4 downloads
143
Research Article DOI: 10.67897/njma.2017.pbbvoncf

Strengthened of Some Results on Fuzzy Soft Multiset Theory

H. M. Balami*, I. A. Onyeozili

In this paper, we present the definition of fuzzy soft multi set and its basic operations such as complement, union and intersection as introduced in 2012. We define the operations such as restricted intersection, restricted union, AND-product, OR-product, restricted difference and restricted symmetric difference. Basic algebraic properties of these operations are presented with relevant examples....

Sep, 2017 pp. 148−172 14 views 4 downloads
144
Research Article DOI: 10.67897/njma.2021.ooexkrxb

Two Modified Hybrid Inertial Algorithms for Bregman Weak Relatively Nonexpansive Mapping in Banach Spaces

Enyinnaya Ekuma-Okereke*, F. M. Okoro, Cletus Abhulimen

This paper formulates two modified hybrid algorithms with inertial parameter corresponding to Bregman distance function for approximating common fixed point of a Bregman weak relatively nonexpansive mappings in a Banach space. The inertial parameter of these algorithms involve a computation of the gradient of the given function at each iterates. We prove a strong convergence theorems for these alg...

Jul, 2021 pp. 149−174 11 views 7 downloads
145
Research Article DOI: 10.67897/njma.2018.l44fgzh6

A Markov Chain Prediction Model on a Major Pair in the Currency Market

Emmanuel O. Oduselu-Hassan*

The Markov chain prediction model is a type of stochastic model and very useful in predicting prices of stocks and exchange rates with outcomes that appear to be random in nature due to many factors that influence the price movement. The uncertainty in the price of the stocks and exchange rates arose. from the many factors, which include the economy of the region, financial and economic news of ot...

Jun, 2018 pp. 149-158 4 views 4 downloads
146
Research Article DOI: 10.67897/njma.2022.4y6be108

Optimization of two-step method with Bhaskara points for solving non-linear dynamical problems

Umaru Mohammed*, Oyewole Abiodun Oyelami, Jamiu Garba, Abdullahi Aliyu Alhaji, Mikhail Semenov

We derive a two-step method for solving non-linear dynamical problems employing Bhaskara points as off grid points. Deterministic in nature, non-linear dynamical systems display a periodic behavior that is highly dependent on the beginning circumstances, making long-term predictions impossible. Four Bhaskara points are generated as hybrid points to optimized the system. The method is use to solve ...

Dec, 2022 pp. 151-168 3 views 4 downloads
147
Research Article DOI: 10.67897/njma.2016.xy5i4osc

A Mathematical Model of Cooperative Advertising and Subsidy Transfer Strategies

Peter E. Ezimadu*

This work uses game theory to consider cooperative advertising in a supply chain involving a manufacturer, a retailer, and a distributor. The manufacturer who is the channel leader plays aStackelberg game with the other channel members. While the distributor is the first follower (or second leader), the retailer is the second follower. The channel structure involves a situation where only the reta...

Jun, 2016 pp. 151-161 3 views 4 downloads
148
Research Article DOI: 10.67897/njma.2022.j4wnhump

Development of an improved numerical integration scheme, its algorithm and application in the least square approximation

A. Y. Issah, K. Issa*, A. S. Olorunnisola

In this paper, we derived an improved numerical integration for finding the approximation of functions. An algorithm was written for the implementation in the least square approximation via shifted Gegenbauer polynomials and subsequently, the accuracy was tested on some selected examples to show the suitability of the scheme. All the computations were done using Matlab.

Jun, 2022 pp. 152-162 11 views 4 downloads
149
Research Article DOI: 10.67897/njma.2020.pvb9r593

Derivation of a New One-Step Numerical Integrator for Solving First Order Ordinary Differential Equations

Jamiu Garba*, Umaru Mohammed

This article presents a new class of one-step second derivative hybrid block method to solve general first order initial value problems of ordinary differential equations. The method is derived by interpolating an approximated power series at one point and collocating its first and second derivatives at some carefully selected intra-step points. The method is implemented in a block form to overcom...

Aug, 2020 pp. 155−172 9 views 5 downloads