Articles | Nigerian Journal of Mathematics and Applications

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Research Article DOI: 10.67897/njma.2026.fqssihod

Tian Invariants on G2,4(C) Blown Up Along P1(C) ∼= S2

Riadh JELLOUL^*

In this paper, we prove the existence of an extremal functionthat minorizes all admissible functions with zero supremum ona non-toric Fano manifold, namely the complex GrassmannianG2,4(C) blown up along P1(C). The functions considered areinvariant under a suitably chosen automorphism group. Thislower bound allows us to calculate the Tian invariant for this classof functions on these manifolds. Mor...

Apr, 2026 pp. 15-30 30 views 9 downloads

2

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 28 views 6 downloads

3

Research Article DOI: 10.67897/njma.2026.mq7kkwxh

Two-Dimensional Laminar Boundary Layers Hydromagnetic Arrhenius Kinetics Dissipative Fluid Reactive Flow in Non-Slip Conditions with Variable Properties

R. A. Kareem^*, L. A. Animashaun, J. O. Ajilore

This study investigates non-slip hydromagnetic laminar dissipation flow with Arrhenius kinetics in binary reactions characterized by reaction order and variable properties within an unbounded isothermal device. The partial differentiation model is nondimensionalized to a thermofluidic dimensionless form. An invariant quasi-linear coupled ordinary derivative model is obtained using similarity quant...

Jun, 2026 pp. 47-62 25 views 6 downloads

4

Research Article DOI: 10.67897/njma.2026.274l2dsn

Radial Solution of the Monge-Amp`ere Equation on R3 and R4

Riadh JELLOUL^*

In this paper, we determine radial solutions of the Monge-Amp`ere equation on R3 and R4 using a symplectic changeof variables. This transformation simplifies the formulationof the equation and allows it to be expressed in radialform, thereby reducing the problem to an associated ordinarydifferential equation. The existence and uniqueness of thesolutions are established and explicit expressions are...

Apr, 2026 pp. 1-7 25 views 11 downloads

5

Research Article DOI: 10.67897/njma.2026.1aweh9n9

Efficiency of Simpson’s Rule; A Case Study of Unilorin Land Area

Ayinla Ally Yeketi^*, Isola Olatomiwa Oluwadamilare

Simpson’s rule, a numerical integration technique, provides anefficient method for estimating the area of an irregularly shapedlarge landmasses when analytical solutions are impractical. Thisstudy applies Simpson’s 13 , 38 and hybrid rules to determine thearea of the University of Ilorin landmass. The hybrid method,combining the 13 and 38 rules, proves to be more efficient due to itsflexibility wi...

Apr, 2026 pp. 8-14 24 views 9 downloads

6

Research Article DOI: 10.67897/njma.2019.c9lcx57e

Global Solvability of Navier-Stokes Equations with Temperature in Infinite Channel

Peter Anthony^*, D. Hyuk Isaac, S. Magaji Abubakar, M. Gyuk Philibus

This paper determines the global, in time, solvability ofNavier-Stokes equation coupled with temperature in a Poincare-like unbounded domain. Existence, uniqueness and furtherregularity of solutions were obtained for the full Bousinesqsystem in uniformly local spaces. We have used themaximum principle for temperature to establish the cardinalproperties of this illusive phenomena of turbulence.

Dec, 2019 pp. 1-17 23 views 18 downloads

7

Research Article DOI: 10.67897/njma.2026.phtju71m

A Halpern Resolvent-Subgradient-Extragradients Method for finding common solution of fixed point, h-fixed point, equilibrium and variational inequality problems in Banach spaces

Enyinnaya Ekuma-Okereke^*, Joseph O. Ogbodu

The key idea behind solving well known applicable problems is to reformulate the problems as finding a fixed point of a suitably defined mapping. The theory of variational inequalities and equilibrium problems involving some operators with monotonicity conditions have received remarkable development with several methods suggested for solving them. Efforts have significantly been made in approximat...

Jun, 2026 pp. 31-46 21 views 15 downloads

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Research Article DOI: 10.67897/njma.2025.ouxb5w0m

Double-Blinded One-Time-Password Key Generation for Authentication in Internet of Things (IoT)

A. J. Saka^*, Segun Aina, Omolara Aminat Ogungbe, Kehinde Adam Olurode, Ishaya Peni Gambo, Oluwafemi Joshua David, K. Rauf

This paper is proposing a novel technique that generates an unpredictable digit-size at every time of authentication. In this technique, neither the authentic user nor the hacker can have the prior knowledge of the digit-size not to think of the combinatorial (sequence or random order) of the anticipated keys. Indeed, this is simply referred to as Double-Blinded One-Time Password Key Generation (D...

Jun, 2025 pp. 1-15 19 views 4 downloads

9

Research Article DOI: 10.67897/njma.2019.utydc390

Homotopy Perturbation with Laplace Transforms Method for Solving Singular Initial Value Problems

M. O. Olayiwola^*, A. Adegoke

In this paper, the Homotopy Perturbation Method with Laplace Transform (LT-HPM) is employed in solving the Lane-Emden type of differential equations. Application is on linear and nonlinear Lane-Emden singular initial value problems. Com parison with exact solution shows considerable acceleration in convergence. The method is effective and easy to im plement. The results are also presented in tabul...

Apr, 2019 pp. 65−76 19 views 9 downloads

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Research Article DOI: 10.67897/njma.2026.xa92ictk

On Specification of Almon Distribued Lag Model in the Presence of Multicollinearity

T. K. Ajetunmobi, O. K. Agunloye^*

In Almon distributed lag modeling, presence of multicollinearity, choice of appropriate approximating polynomial of suitable degree and choice of optimal truncation lag-length required for the implementation of Almon distributed lag model constitute three major problems confronting Almon distributed lag modeling.Given the fact that the choice of appropriate approximating polynomial of suitable deg...

Jun, 2026 pp. 81-91 17 views 4 downloads