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193 articles
61
Research Article DOI: 10.67897/njma.2025.u1vf4nxg

Equilibrium Analysis of Bertrand Competition Model

Abdulhakim Muhammad*, Aminu Muhammad

This paper offers a comprehensive examination of the major competition models in microeconomics, with a central emphasis on the Bertrand framework. In addition to Bertrand price competition, the paper also reviews different competition models to highlight how firms’ strategic choices shape market outcomes. The analysis contrasts price-based and quantity-based competition and evaluates their impact...

Jun, 2025 pp. 51-70 10 views 3 downloads
62
Research Article DOI: 10.67897/njma.2019.xwtw33v8

Numerical Approximation of Fractional Relaxation-Oscillation Equation by Aboodh Transform Method

O. O. Olubanwo*, A. T. Talabi, O. A. Dehinsilu, O .S. Odetunde

In this paper, we present the approximate solutions of fractional relaxation-oscillation equations by using Aboodh Transform Method (ATM). Some examples are considered to illustrate the capability and reliability of the method. The solutions obtained are presented in the form of rapidly convergent series with easily computable terms. The results obtained by ATM are compared with the exact solution...

Apr, 2019 pp. 51−64 12 views 4 downloads
63
Research Article DOI: 10.67897/njma.2021.2zgwm0wh

Construction of Row-Column Designs from a Class of Nested Balanced Incomplete Block Designs

A. J. Saka*, M. O. Adeleke, B. L. Adeleke

Designs that possess the ability to remove heterogeneity in the experimental material, have received considerable attention in the literature. By convention, the parameters of row-column designs constructed in this paper are v,b,p,q which respectively denote the number of treatments, rectangular blocks, rows and columns; and indeed, each of the rectangular blocks has nested within it, p rows and q...

Jul, 2021 pp. 53−63 11 views 8 downloads
65
Research Article DOI: 10.67897/njma.2022.oj5zh04r

Motion of Casson-Williamson with MHD Chemically Reacting Nanofluids under the Influence of Nonlinear Buoyancy Force and Theories of Cattaneo-Christov

A. S. Idowu*, B. O. Falodun, C. Onwubuoya, F. O. Aiyegbusi

The focus of this research is to examine the Cattaneo-Christov heat and mass transfer processes on Casson-Williamson fluids with nonlinear buoyancy force and thermal radiation. The flow analysis was described by partial differential equations (PDEs). The resulting PDEs were simplified by utilizing suitable variables to derive coupled nonlinear total differential equations. Spectral homotopy analys...

Dec, 2022 pp. 56-75 10 views 10 downloads
66
Research Article DOI: 10.67897/njma.2022.jireubgc

Some Combinatorial Results on Star-Like Transformation Semigroup T αω∗ n

Garba Risqot Ibrahim*, Olasunkanmi Jafar Lawal, Sulaiman A. Akinwunmi, G. N. Bakare, Adeshola A. Dauda

Let Xn be a finite set and star-like full transformation semigroup T αω∗ n be a semigroup of Full Transformation semigroup Tn of Xn. Let Height of α ∗ be H+(α ∗ ) = | Imα∗ |, Fixed point of α ∗ be F(α ∗ ) = | {x ∈ X : xα∗ = x} |, Idempotent of α ∗ be | F(α ∗ ) |=| Imα∗ | , Collapse of (α ∗ ) be | ∪{tα−1 : t ∈ T αω∗} | and Relapse of (α ∗ ) be | n − C +((α ∗ )) | and also, Green’s relation of semig...

Jun, 2022 pp. 56-67 9 views 5 downloads
67
Research Article DOI: 10.67897/njma.2016.3wdj5uml

MATHEMATICAL DYNAMICS OF THE INTERACTION OF 2-3 PREY-PREDATOR NON-DIFFUSIVE ECOLOGICAL SYSTEM

Aiyesimi Y. M*, Jiya M., R. O. Olayiwola, O. S. Makinde

A diagram illustrating the relationship between three (3) competing predators who also compete amongst themselves and two independent prey is shown to see the nature of interdependence among the species. To this end, it is considered that the free population (without interaction) is the solution to the logistic equation of individual specie. A semi-analytical approach is developed for solving the ...

Jun, 2016 pp. 56-64 4 views 5 downloads
68
Research Article DOI: 10.67897/njma.2014.frkfqcry

CONSUMER PREFERENCES FOR MOBILE PHONES AMONGST STUDENTS IN AKOKA AREA OF LAGOS STATE

M. O. Adamu*, Ijezie O.A.

Over the years after the invention of mobile phones, people are still purchasing and using mobile phones today. However, different people prefer different attributes of mobile phones.The main purpose of this study was to identify the factors that influence consumer preferences on mobile phone purchase. The specific attributes examined in this study were brand, price, colour, quality and warranty. ...

Jun, 2014 pp. 58-69 3 views 4 downloads
69
Research Article DOI: 10.67897/njma.2018.4eyo1wn2

Laplace Homotopy Perturbation Method for Solving Fourth Order Parabolic Partial Differential Equations with Variable Coefficients

O. O. Olubanwo*, O .S. Odetunde

In this paper, we present a reliable combination of the Laplace transform and Homotopy perturbation method to solve one-dimensional fourth-order parabolic linear partial differential equations with variable coefficients. Some cases of one-dimensional fourth-order parabolic linear partial differential equations are considered to illustrate the ability and reliability of the mixture of the Laplace t...

May, 2018 pp. 59-69 5 views 4 downloads
70
Research Article DOI: 10.67897/njma.2020.g5idry49

Evaluation of Some Heteroscedastic Models of Generator Plants Noise Production

A. J. Saka*, I. Akeyede, A. Babawuya

Regression analysis requires the homoscedasticity condition to fit and predict time series observations. Basically, most real life data have a tendency to exhibit changing in variances which violates the homoscedasticity assumption. As such, it is appropriate to consider outlines that allow the variance to be subjected to the history of the data. This study therefore compare some het eroscedastic ...

Mar, 2020 pp. 61-72 30 views 10 downloads