Journal of Mathematical Sciences & Computational Mathematics (JMSCM)
(ISSN Number (Online) - 2644-3368)
(ISSN Number (Print) - 2688-8300)


Volume 7 Issue 1 :


Evaluating Life Time Models: A Comparative Study of the Inverse Weibull and Inverse Lognormal Distributions


Chukwudi Anderson Ugomma


Department of Statistics, Faculty of Physical Sciences,
Imo State University, Owerri, Nigeria


Corresponding author Email: [email protected]

Page Number: 1-11


This study presents a comparative analysis of the Inverse Weibull and Inverse Lognormal distributions using both simulated and real-world data with Maximum Likelihood Estimation (MLE). Model selection criteria included Akaike Information Criterion (AIC), Bayesian Information Criterion (BIC), Anderson Darling (AD), and Kolmogorov-Smirnov (KS) tests. Six simulated sample sizes (50, 100, 150, 200, 250, and 500) were used, with 1000 replications each. Results showed the Inverse Lognormal distribution consistently had lower AIC and BIC values at small to moderate sample sizes. Furthermore, real-world stock price data (sample size 100) from the Nigerian Stock Exchange was analyzed. Descriptive statistics and goodness-of-fit tests favored the Inverse Lognormal model. These findings support the utility of AIC, BIC, AD, and KS in lifetime data modeling and model selection.

keywords:
Inverse Weibull distribution; Inverse Lognormal distribution; Maximum Likelihood Estimation; AIC; BIC; Anderson-Darling; Kolmogorov-Smirnov; Simulation study; Lifetime analysis; Model selection; Stock price data.


DOI: doi.org/10.15864/jmscm.7101

ROUGH SET FOR PRE-PROCESSING OF DATA


Pallab Kumar Dey


Department of Computer Science, Kalna College
Kalna-713409, India


Corresponding author Email: [email protected]

Page Number: 12-18


Data mining algorithms may hamper due to missing attribute values. Classification accuracy of the data mining may hamper due to improper handling of missing values. For data processing Rough set is an important tool. It can handle uncertainty and impreciseness without any additional or prior information about data. Crisp equivalence classes are the main concept of Rough set. In this paper it has been shown that Rough set is an important tool for data pre processing in applications like imputation of missing values, attributes reduction, etc.

keywords:
Rough set, Attribute Reduction, Missing value Imputation.


DOI: doi.org/10.15864/jmscm.7102

ROLE OF VISCOUS DISSIPATIVE COUETTE FLOW WITH WALL CONCENTRATION EFFECT IN A CONVECTIVELY HEATED CHANNEL


1Halima Usman, *2Sa’adatu Muhammad Danjumma, 3Jamilu Abubakar and 4 Abba Almu


1,3Department of Mathematics, Faculty of Physical and Computing Sciences, Usmanu Danfodiyo
University, P. M. B. 2346, Sokoto State, Nigeria.


2Department of Mathematics, Faculty of Sciences, Sokoto State University, Sokoto State.


4Department of Computer Science, Faculty of Physical and Computing Sciences, Usmanu Danfodiyo
University, P. M. B. 2346, Sokoto State, Nigeria.


*Corresponding author’s Email: [email protected]

Page Number: 19-42


The heat and mass transfer problem of a viscous dissipative fluid with symmetric wall concentration conditions is solved analytically using the homotopy perturbation method. Physical components of engineering importance in terms of Sherwood number, Nusselt number, and skin friction are also calculated, along with the governing equations controlling the flow configuration. The study's main findings suggest that reverse flow can be produced and controlled when mass flow with a wall concentration effect is present. Furthermore, a graphic comparison of the present work's findings with previous research for the limiting scenario establishes the validity and accuracy of the current study. A high degree of consistency was verified.

keywords:
Couette Flow, Mass flow, Wall concentration, Viscous dissipation, Convective boundary conditions, Homotopy perturbation method.


DOI: doi.org/10.15864/jmscm.7103

IMPACT OF SUCTION/INJECTION ON CONVECTION-RADIATION FLOW IN A SUPERHYDROPHOBIC MICROCHANNEL WITH VISCOUS DISSIPATION


1Muhammed Murtala Hamza, 2*Agnes Marian Ochiba, 3Ibrahim Muhammad and 4Davidson Odafe Akpootu


1,2,3Department of Mathematics, Faculty of Physical and Computing Sciences, Usmanu Danfodiyo University,
P.M.B. 2346, Sokoto.

4Department of Physics, Faculty of Physical and Computing Sciences, Usmanu Danfodiyo University, P. M. B.
2346, Sokoto.

*Corresponding author Email: [email protected]

Page Number: 43-62


Understanding fluid flow in microchannels, especially when hydrodynamic factors are present, has advanced significantly in the past few decades. The role of heat radiation and constant suction/injection in these unique interactions has, however, received little research. Thus, in the presence of a constant suction/injection action, the influence of optically thick thermal radiation on buoyancy-induced magnetized flow with viscous dissipation via a superhydrophobic microchannel is investigated in this work. While the other parallel plate has a no-slip surface (NSS), one of the plates is purposefully altered to create a superhydrophobic surface (SHS). The nonlinear coupled ordinary differential equations that are modeled are semi-analytically solved. A visual representation shows how the main parameters govern the flow behavior in terms of momentum and energy distributions. Because the current study is supported by a comparison with previous research, it is valid for the limiting case. The study's main findings are: A larger fluid injection parameter results in a stronger temperature and velocity, respectively, and increasing values of the thermal radiation R function as an additional assisting force. Medical sciences and technical applications like the cooling and drying of paper and textiles, and the molding of metals and polymers, to mention a few, depend heavily on the research of fluid suction or injection flow.

keywords:
Suction/injection, Viscous dissipation, Thermal radiation, Magnetohydrodynamics (MHD), Superhydrophobic microchannel.


DOI: doi.org/10.15864/jmscm.7104

PREDICTING THE SPREAD AND CONTROL OF DIPHTHERIA USING MACHINE LEARNING: A DATA-DRIVEN APPROACH TO DISEASE SURVEILLANCE AND INTERVENTION STRATEGY OPTIMIZATION


Abah Roseline Toyin1, Leona Concord Diala2* & Agbo Christiana Ene3


1,3Dept of Mathematics, University of Abuja, Abuja.


2Dept of Mathematics, Margaret Lawrence University, Abuja.

*Corresponding author Mail: [email protected]

Page Number: 63-75


This study presents a comprehensive statistical analysis of diphtheria outbreaks across several African countries using a cleaned dataset from WHO data. Summary statistics reveal Nigeria as the most affected nation in terms of suspected cases and deaths, suggesting a possible correlation with population size, reporting efficiency, or outbreak severity. A notably high case fatality rate (CFR) in Mauritania may be attributed to limited healthcare access and delayed diagnoses. Correlation analysis indicates a strong positive association between deaths and both suspected and confirmed cases, with perfect correlations noted between deaths and both epidemiologically linked and clinical compatible cases. These findings suggest that increased diagnostic efforts may mitigate the CFR by identifying and managing cases earlier. A multiple linear regression model further underscores the significant contributions of lab-confirmed, epidemiologically linked, and clinical compatible cases to death outcomes, all with statistically significant p-values. The model’s prediction accuracy is supported by a near-perfect regression fit. The analysis identifies Mauritania and Niger as high-risk countries for elevated CFRs, warranting urgent public health interventions. This study underscores the value of integrated data analytics in enhancing disease surveillance and informing evidence-based responses to diphtheria outbreaks.

keywords:
: Diphtheria, Machine learning, Infectious disease surveillance, Intervention strategies, Multiple Linear Regression.


DOI: doi.org/10.15864/jmscm.7105

One-Dimensional Isometric Hybrid Homotopy–Kharrat–Toma Method for the Neutrosophic KdV Equation


1*George Albert Toma,2Taqi A. Alkhatib


1Department of fundamental sciences
Higher Institute for Applied Sciences and Technology, Aleppo, Syrian Arab Republic.


2Department of mathematics,
Faculty of Science, Aleppo University, Aleppo, Syrian Arab Republic.

*Corresponding author Email: [email protected]

Page Number: 76-83


This paper presents a novel framework for solving the third-order nonlinear neutrosophic Korteweg–De Vries (KdV) equation by combining the Hybrid Homotopy Perturbation Method (HPM) with the Kharrat Toma transform under a one-dimensional isometric transformation. The neutrosophic partial differential equation is first converted into a system of classical differential equations. The Kharrat–Toma transform is then applied to obtain an integral representation that facilitates the implementation of the homotopy perturbation technique. This hybrid approach yields analytical, rapidly convergent series solutions that accurately capture the dynamic behavior of neutrosophic channel waves. A detailed numerical example demonstrates that the obtained approximate solutions agree closely with the exact solutions over a wide range of parameters, confirming the accuracy and robustness of the proposed methodology for nonlinear neutrosophic partial differential equations.

keywords:
Neutrosophic Korteweg–De Vries equation, Hybrid Homotopy Perturbation Method (HPM), Kharrat-Toma Transform, One-dimensional isometric transform, Analytical solution, Exact solution.


DOI: doi.org/10.15864/jmscm.7106

Higher-Order Linear Neutrosophic ODEs via the One-Dimensional Isometric Transform


1*George Albert Toma, 2Taqi A. Alkhatib



1Department of fundamental sciences
Higher Institute for Applied Sciences and Technology, Aleppo, Syrian Arab Republic.

2Department of mathematics,
Faculty of Science, Aleppo University, Aleppo, Syrian Arab Republic.

*
Corresponding author email: [email protected]

Page Number: 84-95



In this paper, a general class of inhomogeneous linear neutrosophic ordinary differential equations with constant coefficients and arbitrary order is investigated. By employing the one-dimensional isometric transform (Khatib–Abu Balla transform), the original neutrosophic problem is rigorously reduced to an equivalent system of classical linear ordinary differential equations.

The solution procedure begins with the analysis of the corresponding homogeneous equation, followed by the construction of particular solutions for the inhomogeneous neutrosophic equations, where the forcing terms may take exponential, trigonometric, or polynomial forms. The differential operator method is then applied within the classical framework, and the inverse isometric transform is used to recover the exact neutrosophic solutions.

The general solution of the inhomogeneous neutrosophic equation is obtained as the superposition of the homogeneous and particular solutions. Several illustrative examples are provided to demonstrate the effectiveness, consistency, and applicability of the proposed method in solving higher-order inhomogeneous neutrosophic differential equations.

keywords:
Ordinary differential equation, Isometric transform, Differential operator method.


DOI: doi.org/10.15864/jmscm.7107

MATHEMATICAL CONSTRUCTION SKILLS AS A PREDICTOR OF BIOLOGY ACHIEVEMENT AMONG SECONDARY SCHOOL STUDENTS IN BAYELSA STATE


*Charles–Owaba, Tekenate & Odibo Aghogho


Department of Science Education, Faculty of Education,
Federal University, Otuoke

*Corresponding author Email: [email protected]

Page Number: 96-109



This study investigated the extent to which students’ proficiency in mathematical construction skills predicts their achievement in biology among secondary school students in Bayelsa State, as well as the influence of gender on this predictive relationship. A correlational research design was adopted to explore the nature of the relationship between the variables. The population comprised all 4567 senior secondary school biology students in Bayelsa State, from which a sample of 200 students was selected using a stratified random sampling technique to ensure adequate gender representation. Data were collected using two standardized instruments: the Mathematical Construction Skills Test (MCST) and the Biology Achievement Test (BAT). The instruments were validated by experts in Measurement and Evaluation, and their reliability coefficients, obtained through Cronbach’s Alpha, were 0.82 and 0.86 respectively, indicating strong internal consistency. Data were analyzed using simple linear regression at a 0.05 level of significance. Findings revealed a significant positive predictive relationship between students’ proficiency in mathematical construction skills and their achievement in biology (β = 0.590, p < 0.05), while gender had no significant influence on this relationship (p > 0.05). The study concluded that mathematical construction skills are crucial in enhancing students’ academic performance in biology, regardless of gender. It was recommended that teachers integrate mathematical construction activities into biology instruction and that gender inclusive pedagogical strategies be adopted to ensure equitable learning outcomes for all students.

keywords:
Mathematical Construction Skills, Biology Academic Achievement, Secondary School Students.


DOI: doi.org/10.15864/jmscm.7108

SOLVING A KLEIN - GORDON EQUATION NON LINEAR AS A GENERALIZED PROBLEM OF MOMENTS


12María B. Pintarelli


1Departamento de Matematica de la Facultad de Ciencias Exactas
Universidad Nacional de La Plata, LaPlata -1900. Argentina


2Departmento de CienciasBasicasde la Facultad de Ingenieria
Universidad Nacional de La Plata -1900. Argentina


Corresponding author Email: [email protected]

Page Number: 110-125



We consider the problem of finding a function 𝑤(𝑥,𝑡) that satisfy the equation 𝑤𝑡𝑡(𝑥,𝑡) − 𝑤𝑥𝑥(𝑥,𝑡) + 𝜒(𝑥,𝑡,𝑤) = Φ(𝑥,𝑡) under Dirichlet boundary conditions or Neumann boundary conditions. We will see that an approximate solution can be found using the techniques of generalized

keywords:
:generalized moment problem; integral equations; hiperbolic equation, Cauchy conditions.


DOI: doi.org/10.15864/jmscm.7109

QUANTUM-ENHANCED REMOTE SENSING IN AGRICULTURE: ADVANCING CROP AND SOIL ANALYSIS THROUGH QUANTUM COMPRESSIVE GHOST IMAGING AND METROLOGY


Anshit Mukherjee



Department of Computer Science and Engineering
Abacus Institute of Engineering and Management, Mogra, India.


Corresponding author Email: [email protected]

Page Number: 126-158



Farming is a prerequisite of the existence of human beings, but the agricultural sector is still subject to chronic issues, including pests, illnesses, soil erosion, water scarcity, and the consequences of the climate change. To cope with these challenges, the smart solutions to them are necessary, which will optimize the efficient use of land, water, and energy and will, at the same time, improve the resiliency and productivity of crops and soil. Remote sensing is important in the measurement of crops and soil parameters, such as temperature, moisture content, nutrient, stress, and disease, but the traditional types of remote sensing e.g. satellite imagery and aerial imagery have constraints of low resolution, high noise, high data and energy requirements, high costs and the complexity of remote sensing. In order to reduce these constraints, quantum computing is proposed to enhance quantum compressive ghost imaging using quantum metrology. It combines quantum enhanced sensing, that minimizes the need of measurements, and energy costs, with quantum enhanced estimation, that enhances the level of precision and accuracy using quantum light sources and quantum interferometry and entangled photons. Compared to conventional approaches, quantum computing enhanced quantum compressive ghost imaging has better resolution, lower noise, and lower cost as well as new capabilities and applications that cannot be established by classical means. The paper also addresses time and space complexity, applicability and challenges of quantum computing enhanced quantum compressive ghost imaging in agricultural practices with the help of algorithm design, testing protocols, experimental findings, and graphical illustrations. The results show that quantum computing quantum compressive ghost imaging is much better at estimating crop and soil parameters, which leads to sustainability and productivity in agricultural systems.

keywords:
Quantum Metrology, Algorithm, Remote Sensing, Ghost Imaging.


DOI: doi.org/10.15864/jmscm.7110

TRACING THE EVOLUTION AND IMPACT OF EQUITY-FOCUSED MATHEMATICS EDUCATION RESEARCH: A SYSTEMATIC REVIEW


Fiepre C. Y. Aprebo


Department of Science Education, Faculty of Education,
Federal University, Otuoke

Corresponding author Email: [email protected]

Page Number: 159-179



Equity-focused mathematics education research has increasingly sought to address disparities in learners’ access, participation, and achievement, promoting inclusive and socially just learning environments. This study provides a systematic review of the evolution and impact of equity-oriented research in mathematics education, examining themes, trends, and outcomes reported in empirical and theoretically grounded studies from 2000 to 2025. Using a structured review approach, key themes identified include achievement gaps and access, culturally responsive and inclusive pedagogy, classroom participation and discourse, critical and social justice mathematics, and policy, curriculum, and teacher preparation. Findings indicate that equity-focused interventions have positively influenced learners’ access to mathematics opportunities, classroom engagement, academic performance, and learner agency. However, these impacts are often mediated by contextual factors such as teacher preparedness, institutional support, and policy implementation. The study highlights the importance of multi-dimensional strategies integrating inclusive pedagogies, professional development, and systemic support to advance equity in mathematics education. Recommendations focus on curriculum reform and sustained teacher training to maximise equitable outcomes.

keywords:
Equity-focused Mathematics Education, Inclusion, Social Justice, Learner participation, Academic Achievement, Educational policy.


DOI: doi.org/10.15864/jmscm.7111

-->