Articles

Browse our published research articles

193 articles
101
Research Article DOI: 10.67897/njma.2019.6s53us9j

An Investigation of the Effects of Diffusion on a Competition Model

J. N. Ndam*, E. O. Tuoyo

We present a reaction-diffusion competition model, to describethe spatial spread of two competing species. Standard analysisof the model using the travelling wave procedure was employedto determine the existence of travelling wave solutions andthe stability of the equilibrium points. The result shows thatthe zero equilibrium point is stable, contrary to that of adiffusion-free competition model. T...

Dec, 2019 pp. 91-103 3 views 4 downloads
102
Research Article DOI: 10.67897/njma.2025.auppw045

Tian Invariant on the Blown-up Grassmannian Futaki Obstructions and K-Stability

Riadh JELLOUL*

In this paper, we compute the Tian invariant on a generalization of Calabi manifolds introduced by the author in collaboration with A. Ben Abdesselem and M. Filali in [1]. We adapt the method of the original article to the setting of complex Grassmannians blown up along linear subvarieties. Our original contribution is fourfold: we explicitly determine the subgroup H ⊂ Aut(G(k, n)) = P GL(n, C) th...

Jun, 2025 pp. 92-111 17 views 6 downloads
103
Research Article DOI: 10.67897/njma.2019.dtedyxbo

Some Results on a Scalable Congestion Control System

O. O. Solanke*, A. D. Aina, O. B. Alaba, M. A. Usman, T. J. Odule, K-K. A. Abdullah

In this article, a congestion control system with the facility of load balancing is designed to solve congestion problem that may be associated with transmission of data over the internet. This will enable small scale service providers to have an uninterrupted and easy way of transmitting information over the internet, using affordable and scalable system that provides connectivity when other rout...

Apr, 2019 pp. 93−101 11 views 3 downloads
104
Research Article DOI: 10.67897/njma.2022.6w09nbd1

Radiative Effects on Heat and Mass Transfer of Magnetohydrodynamics Fluid Flow in Porous Media

S. A. Amoo*

Magnetohydrodynamics (MHD) flow involving heat and mass transfer under the influence of radiation, heat source, and chemical reaction effects is of great concern in physical sciences and engineering. The gap in earlier studies showed that few parameters emanating from studies like this, due to difficulty usually encountered in reaching quick convergences when solving such problems. The study there...

Dec, 2022 pp. 94-107 3 views 2 downloads
105
Research Article DOI: 10.67897/njma.2014.qwhvyr0i

Teachers Teaching Strategies and Students Performance in Senior Secondary Schools Mathematics in Ilorin, Nigeria

Akanmu, M. A.*, Abinde, A. O., Fajemidagba, M. O.

This study investigated teachers teaching strategies and students performance in Mathematics at senior secondary schools. Specifically, the focus of the study was to determine the impact of simulation teaching method in relation to students gender and scoring levels in relation to performance in Mathematics. The sample consisted of 68 Senior School 1 students, comprising 33 males and 35 females, f...

Jun, 2014 pp. 94-104 4 views 4 downloads
106
Research Article DOI: 10.67897/njma.2017.8pzgjhqm

Numerical Solution of Two Dimensional Poisson and Laplace Equations

Aliu, T.*, O. M. Bamigbola, and Montaz Ali

The study identifies the use of Finite Element Method with both rectangular and Triangular elements in solving two di mensional problems with Dirichlet boundary condition in a rectangular domain. We use the product functions of linear polynomial basis constructed by (Aliu & Bamigbola, 2014) on the rectangular elements. Attempt was made at con structing the basis functions for Triangular elements. ...

Sep, 2017 pp. 95 −112 13 views 3 downloads
107
Research Article DOI: 10.67897/njma.2020.d04oko97

Lower estimates on the principal eigenvalue of Witten q-Laplacian on Smooth metric measure spaces

A. Abolarinwa*

Some eigenvalue inequalities in terms of generalized Mckean bound and the weighted Cheeger’s constant are proved for Witten q-Laplacian on smooth metric measure spaces with smooth boundary imposing certain restrictions on geometric quantities such as mean curvatute and sectional curvature of the domains. On the other hand, a clamped plate problem involving Witten bi-Laplacian is considered on a we...

Aug, 2020 pp. 96−110 8 views 4 downloads
108
Research Article DOI: 10.67897/njma.2021.ed5qp6k6

On Character Amenability of Fr´ echet Algebras

S. A. Ayinde*, S. O. Agboola

In this paper we examine the notion of character amenability for Fr´echet algebras A (:= Arens-Michael algebras A) with emphasis on the continuous point derivation on A. We show that a Fr´echet algebra with a locally bounded approximate identity (lbai) and lo cally bounded approximate diagonal (lbad) is character amenable.

Jul, 2021 pp. 97−107 9 views 3 downloads
109
Research Article DOI: 10.67897/njma.2018.d6vo6b8x

A Class of Implicit Five Step Hybrid Method for Solving First Order Initial Value Problem

L. Idris*, Y. A. Yahaya, U. Mohammed

In this paper, a self-starting five step continuous block hybridformulae (CBHF) with one Off-step point is developed using col-location and interpolation procedures. The CBHF is then used toproduce multiple numerical integrators that are of uniform orderand are assembled in to a single block matrix equation. Theseequations are simultaneously applied to provide the approximatesolution for the ordin...

Jun, 2018 pp. 99-107 3 views 4 downloads
110
Research Article DOI: 10.67897/njma.2026.erynow6n

A REVIEW OF THE Pth MOMENT EXPONENTIAL STABILITY AND ALMOST SURE EXPONENTIAL STABILITY OF NON-LINEAR STOCHASTIC DELAY DIFFERENTIAL EQUATIONS WITH CONSTANT TIME LAG.

Augustine Omoghaghare Atonuje*

The paper tries to connect the pth- moment exponential stability and the almost sure exponential stability of non-linear stochastic delay differential equations (SDDEs) with small time lag. It is generally true that the pth- moment exponential stability of SDDEs and the almost sure exponential stability do not imply each other. By applying the Lyapunov function and an idea of generalized moment in...

Dec, 2015 pp. 100−111 11 views 4 downloads