Contemporary Mathematics
ISSN: 2705-1064 (Print) 2705-1056 (Online) DescriptionContemporary Mathematics is a bimonthly peer-reviewed scientific journal. Our ultimate goal is to make the journal an important source for publishing high quality papers related to the development of contemporary mathematics as well as a continuing and evolving source of interesting and relevant problems for researchers.
The scope of this journal includes theoretical, numerical, and experimental studies in all fields of mathematics and the mathematical sciences. A broad spectrum of topics are covered: mathematical theory, pure mathematics, algebra, geometry and topology, complex analysis, differential equations, industrial mathematics, computational mathematics, discrete mathematics, applied mathematics, mathematical physics, mathematical statistics, etc.
CiteScore (2023) Impact Factor (2023)
0.6 0.6
Announcement
Jan 17,2025
Special Issue: Function Spaces and Its Applications
Jan 13,2025Contemporary Mathematics Changes Publication Frequency from Quarterly to Bi-Monthly
Dec 16,2024Recruitment: Reviewer Board Members
Dec 16,2024Special Issue: The International Conference on Data-Driven AI (ICDDA) - 2025
Dec 12,2024Special Issue: Integrating Uncertainty and Fuzziness in Data-Driven Optimization using Hybrid AI Methods
Information
Latest Articles
Open Access Article
Risk Assessment for Start-Up Business in SMEs: Qualitative and Mathematical Approach
by Siti Nadhirah Mohamad Fauzi, Puspa Liza Ghazali, Rabiatul Adawiyah Abdul Rahim, Farah Amalina Md Nawi, Salman Lambak, Eni Noreni Mohamad Zain, Mohamad Afendee Mohamed
ABSTRACT: Due to its crucial role in economic growth and job creation, there has been a notable increase in start-up businesses, particularly small and medium enterprises (SMEs). Many start-up...
Open Access Article
Entrepreneurial Strategies in Livestock Inventory Management with Trade Credit
by Jayashri P, Umamaheswari S
ABSTRACT: Amelioration and deterioration rates play a vital role in inventory management. Some animals lose value due to illness, death, or other incidents as they gain weight when kept on farms in good...
Open Access Article
Collocation Technique Based on Chebyshev Polynomial to Solve Lane-Emden-Fowler Boundary Value Problem
by Shabanam Kumari, Arvind Kumar Singh, Utsav Gupta
ABSTRACT: We present an innovative technique to find numerical solutions of the Lane-Emden-Fowler singular-type BVPs which plays a crucial role in comprehending a wide range of physical phenomena. The core...
Open Access Article
Artificial Intelligence Model Based on Algebraic Topology for Protein Structure Analysis and Prediction
by Zakaria Lamine, My Ismail Mamouni
ABSTRACT: With the availibility and the easy access to protein data through different publicaly available databases a lot of questions are raised on how to make sense from data in aim to figure out new...
Open Access Article
The Greatest Common Divisor of Sets of Binomial Coefficients with Restrictions
by Chan-Liang Chung, Tse-Chung Yang, Kanglun Zhou
ABSTRACT: Ram (1909) proved an elegant result for the greatest common divisor of a set of binomial coefficients, and many researchers have proved similar results along these lines. In this paper, we will...
Open Access Article
Particle Swarm Optimization of a Single Server Retrial Queue with Delayed Repair Under Working Vacation From Optional Service to ReService
by Kalaiselvi J, Saravanarajan MC
ABSTRACT: Queueing systems (QS) play a critical role in modeling and optimizing various real-world processes by managing the flow of entities within systems involving queues. To address this, the proposed...
Open Access Article
On Soft Submaximal and Soft Door Spaces
by Ohud F. Alghamdi, Mesfer H. Alqahtani, Zanyar A. Ameen
ABSTRACT: This paper is divided into two parts. The first part deals with soft submaximal spaces, where we present new theorems and some basic facts. Further, we successfully find a requirement that...
Open Access Article
Neutrosophic Lindley Distribution: Simulation, Application, and Comparative Study
by Shakila Bashir, Bushra Masood, Ishmal Shehzadi, Zainalabideen Al-Husseini, Muhammad Aslam
ABSTRACT: Classical statistical methods are commonly applied in distribution theory across various disciplines; however, they often fall short in addressing uncertainty, imprecision, and indeterminacy. In...
Open Access Article
The Modified Log-Logistic Distribution: Properties and Inference with Real-Life Data Applications
by Ahmed Z. Afify, Yassmen Y. Abdelall, Hadeel AlQadi, Hisham A. Mahran
ABSTRACT: This paper introduces a new three-parameter extension of the log-logistic distribution called the generalized Kavya-Manoharan log-logistic distribution. The proposed distribution extends the...
Open Access Article
Ovals of Constant Width in Polar Coordinates
by Adel Al-rabtah
ABSTRACT: We explore ovals of constant width in polar coordinates in this paper. Conversion of a parametric function defined on a rectangular domain of angles, to a polar representation defined on a domain...
Open Access Article
An Analytical and Numerical Approach to Solve the Tsunami Wave Propagation Equation
by Juhi Kesarwani, Abhijit Majumder, Ishita Sharma, Ashish Kumar Kesarwany
ABSTRACT: We study the mathematical model of tsunami wave propagation (TWP) along the coastline of an ocean. The described model is represented by a system of non-linear partial differential equations. In...
Open Access Article
Interconnection Between Schur Stability and Structured Singular Values
by M. Rehman, J. Alzabut, M. Tayyab, F. Amir
ABSTRACT: In this paper, we present new results on the interconnections between Schur stability and structured singular values of real-valued matrices, denoted as R n × n . Most new findings are...
Open Access Article
Assessing the Efffects of Vaccination on Tuberculosis and COVID-19 Co-Infection Modelling
by Harshita Kaushik, V. S. Verma, Ram Singh, A. Manickam
ABSTRACT: In this paper, an epidemiological model is proposed to study the dynamics of coinfection diseases (TB) and COVID-19 with the effect of vaccination. Tuberculosis (TB) and COVID-19 both are...
Open Access Article
On Qualitative Behaviour of Solutions of Third Order Matrix Delay Differential Equations
by Adetunji. A. Adeyanju, Cemil Tunç, Babatunde. S. Ogundare
ABSTRACT: We analyze, using the Lyapunov-Krasovskii method, the conditions for the stability, boundedness and periodicity of solutions to a class of nonlinear matrix differential equation of third order...
Open Access Article
Trend Analysis of BSE Stock Prices Using Hidden Markov Models and Viterbi Algorithm
by S. Aarthi, S. Indrakala
ABSTRACT: Many forecasting techniques have been put forth and used in recent years to predict stock market trends. Recently, many researchers developed models based on Artificial Neural Network (ANN),...
Open Access Article
On the Edge Irregularity Strength of Finite Graphs
by Asma Almazaydeh, Bilal N. Al-Hasanat, Remal S. Al-Gounmeein
ABSTRACT: In this paper, we state the value of edge irregularity strength for the complete graphs K n of order n ≥ 3, wheel graphs W n where n ≥ 3 and the union of disjoint graphs. Also we...
Open Access Article
Computational Behavior of Trihybrid Casson Nanofluid Blood Flow Occurring Inside the Conical Gap Between the Rotating Disk and the Cone
by Yasir Mehmood, Waseem Abbasi, Musaed Alhussein, Khursheed Aurangzeb, Asia Rehman, Muhammad Shahid Anwar
ABSTRACT: The investigation of the flow patterns of a trihybrid nanofluid flow situated in the conical gap that is created among a revolving disc and a stationary cone computationally examined in this...
Open Access Article
Studying the Hidden Relationships in Mixed Data Via Principal Component Analysis with Application in Traumatic Brain Injury Data
by Zakiah I. Kalantan, Rafal Z. Alqarni, Hanan Baaqeel
ABSTRACT: The analysis of complex biomedical datasets often involves a mix of numerical and categorical variables, posing challenges for traditional statistical techniques. To address this limitation, this...
Open Access Article
Stored Energy in the Exterior Schwarzschild Space-Time
by M. Abdelgaber, M. F. Mourad, H. M. Fathy
ABSTRACT: In the present study, we develop a well-behaved null tetrad for the exterior Schwarzschild metric. Additionally, under certain conditions, we were able to extract the tetrad components of the...
Open Access Article
Multiple Timewise Coefficient Determination Problem From Heat Moment Observations
by M. J. Huntul
ABSTRACT: Consider the inverse problem of determining multiple timewise coeffcient and the solution function satisfying the parabolic equation with the direct initial and Dirichlet boundary conditions from...
Open Access Article
Analysis of Factors Affecting Tourist Spot Revisitation After Natural Disaster Calamity: A Machine Learning Ensemble Approach
by Ardvin Kester S. Ong, Maria Sophia S. Buena, Sherwin A. Manalo, First Gabriel M. Martinez, Mark Jeroe G. Razon, Carmelle Natasha R. Timpug, Charlotte N. Monteiro
ABSTRACT: The tourism industry provides the Philippines with trillions of annual monetary incomes. However, being a country prone to natural disasters, many tourist attractions or destinations are damaged,...
Open Access Article
Thermo-Diffusion Effects on Fractional Ordered Model of Unsteady Casson Blood Flow with Magnetic Field Effect
by Nilesh Patel, Harshad Patel
ABSTRACT: This paper deals with the effects of magnetic fields on unsteady Casson blood fluid flow in a stenosis artery. The effects of thermo-diffusion, thermal radiation, metabolic heat sources, and heat...
Open Access Article
Analysis of Radial Distribution Systems Using Particle Swarm Optimization under Uncertain Conditionsditions
by M. Naveen Babu, P. K. Dhal
ABSTRACT: Efficiently mitigating losses in power distribution networks is imperative for their optimal operation. This research employs the particle swarm optimization (PSO) algorithm to investigate the...
Open Access Article
Integration of Theoretical Foundations and Practical Implications for Neutrosophic Set Theory in Real-Time Maintenance Decision Systems
by Settu K, Jayalakshmi M
ABSTRACT: In the present era, the concepts of neutrosophic set theory are essential for handling uncertain data with three distinct components. Researchers across various fields widely use these concepts...
Open Access Article
An Optimized Beluga Whale Approach for Migration to Reduce Power and Service Level Agreement in Real-Time System
by Rukmini S, Shridevi Soma
ABSTRACT: Managing power consumption in cloud data centers has become a critical challenge. Live container migration is a technology supporting energy efficiency in this context. To address the hurdles of...
Open Access Article
Spatio-Temporal Analysis and Prediction by Logistic Regression of Respiratory Diseases in India
by Priyanka Subramani, Kalpanapriya Dhakshnamoorthy
ABSTRACT: Respiratory illnesses rank among the top causes of death and disability in India, influenced by factors such as limited healthcare access, air pollution, smoking, allergens, and a lack of...
Open Access Article
Mathematical Modeling of Velocity Field Induced by the Vortex
by I. Kangro, H. Kalis, A. Aboltins
ABSTRACT: In new technological applications, it is important to use vortex distributions in the area for obtaining large velocity fields. Analogous to electromagnetic and fluid mechanics inductions,...
Open Access Article
Generalization and Properties of κ-Intuitionistic Fuzzy Metric Spaces with Applications to Fixed-Point Theorems
by Vinoth R, Jayalakshmi M
ABSTRACT: This study introduces κ -intuitionistic fuzzy metric spaces, significantly broadening the scope of intuitionistic fuzzy metric spaces. This framework offers greater flexibility and applicability...
Open Access Article
Evaluating Stress-Strength Reliability Estimation Technique: A Study on Ranked Set Sampling for the Beta-Lomax Distribution
by Mujtaba Zuhair Ali Abuhedary, Hossein Jabbari Khamnei, Ali Akbar Heydari
ABSTRACT: Reliability, a crucial aspect in engineering and project management, signifies the likelihood of a system or project enduring without malfunction over a specified duration. Typically, the random...
Open Access Article
Multifractal Analysis on Ozone Depletion and Climate Change: The Time Series Approaches
by M. Meenakshi, A. Gowrisankar
ABSTRACT: The ozone layer has acted as the planet’s natural sunscreen, protecting people, plants, and animals from harmful ultraviolet rays. The Antarctic ozone hole was first announced in a paper by the...
Open Access Article
Commutative Rings and Corresponding V-Graphs
by Nasr Zeyada, S. A. Bashamakh, Ohoud Almalawi
ABSTRACT: Algebraic graph theory, which applies algebraic techniques to graph problems, is a pivotal area of study. Many ring algebraic properties have representations in graph theory. In this paper, we...
Open Access Article
Discussions on the Vertex Euclidean Properties of Graphs
by Zhen-Bin Gao, Sin—Min Lee, Yun-Fei Zhang
ABSTRACT: In 2022, the result that the sum of the lengths of any two edges of a triangle is greater than the length of the third edge in Euclidean geometry, is applied to labeling graph theory, a new...
Open Access Article
Modelling and Simulation of the Effect of Irradiance Related Temperature on Microalgae Cell Growth in an Outdoor Culture for a Horizontal Loop Tubular Photobioreactor
by Md. Kamrul Hasan Chowdury, Md. Rashedul Islam, Nurun Nahar, Mohammad Iftekhar Monir, Ujjwal Kumar Deb
ABSTRACT: Microalgae growth is influenced by numerous culture parameters, and temperature is considered one of the vital growth factors among them. In this study, a computational growth model related for a...
Open Access Article
F-Hardy Rogers Type Contractions Endowed with Mann's Iterative Scheme in Convex Generalized b-Metric Spaces
by Amna Naz, Samina Batul, Dur-e-Shehwar Sagheer
ABSTRACT: This article presents novel fixed point results using Mann’s iterative process in complete convex b -metric spaces, building upon Isa Yildirim’s recent work. The author established the definition...
Open Access Article
Ensemble Technique for Diabetic Precision Medicine Classification
by Badugu Sobhanbabu, K. F. Bharati
ABSTRACT: It is precisely 100 years after giving an insulin shot to a human, which created a revolution in diabetes treatment. Since the fate of diabetes patients has changed in humankind. In this regard,...
Open Access Article
New Modified Gamma and Beta Functions with an Application
by S. Mubeen, I. Aslam, Ghazi S. Khammash, Saralees Nadarajah, Ayman Shehata
ABSTRACT: This note presents a novel set of modified Gamma and Beta k functions. The authors introduce these new functions along with their first and second summation relations, functional relations,...
Open Access Article
Extreme Star of Phenylenes for the Merrifield-Simmons Index
by Guillermo De Ita, Pedro Bello, Cristina López, Edgar Aguilar
ABSTRACT: We identify extremal graphs concerning the number of independent sets for polyphenylene dendrimers. Specifically, we demonstrate that for a certain number of phenylenes, for example to k...
Open Access Article
Some Common Fixed-Point Theorem on Complex-Valued Metric Spaces and Its Application to Solve Urysohn Integral Equations
by P. Vishnukumar, A. Anbarasan, T. Sathiyaraj, Mohammad Sajid
ABSTRACT: In this paper, a new and generalized contraction principles are proved on complex-valued metric space. By adopting a suitable hypothesis on sequence converging in complex-valued metric space new...
Open Access Article
Strong Sandwich Results Involving the Riemann-Liouville Fractional Integral of an Extended q-Hypergeometric Function
by Alina Alb Lupaş
ABSTRACT: The classical theories of differential superordination and subordination have been extended to strong differential superordination and respectively, strong differential subordination. The two new...
Open Access Article
Solvability of a Doubly Singular Boundary Value Problem Arising in Front Propagation for Reaction-Diffusion Equations
by Cristina Marcelli
ABSTRACT: The paper deals with the solvability of the following doubly singular boundary value problem naturally arising in the study of the existence and properties of travelling waves for...
Open Access Article
Information Geometry for Decoding
by A. Addadi, K. Abdelmoumen, H. Ben-Azza, I. Chana
ABSTRACT: We revisit the idea of using elements of information geometry for decoding low-density parity-check (LDPC) codes, as introduced by Ikeda et al. In this work, we explicitly compute the m...
Open Access Article
Exploring the New Exponentiated Inverse Weibull Distribution: Properties, Estimation, and Analysis via Classical and Bayesian Approaches
by Pankaj Kumar, Laxmi Prasad Sapkota, Vijay Kimar, Nirajan Bam
ABSTRACT: The “New Exponentiated Inverse Weibull” (NEIW) distribution is a novel probability distribution with versatile applications in reliability engineering, survival analysis, and related fields. This...
Open Access Article
Results on Enhanced Continuous Random Variable’s Probability Distribution Using a Different Exponential Function for the Normal Probability Distribution
by C V Rao
ABSTRACT: In the history of probability and statistics, general normal probability has played an important role. I utilize a different exponential function to create a new continuous probability density...
Open Access Article
Mathematical Modeling on Weakened Thermomagnetic Nanobeam Based on the Nonlocal Strain Gradient Theory
by Mohammadreza Eghbali, Seyed Amirhosein Hosseini, Mahdi Keshtkar
ABSTRACT: In this research paper, the focus is on analyzing the free lateral vibration of a nanobeam that has been weakened. The investigation revolves around studying the impact of thermal and magnetic...
Open Access Article
Comparative Analysis of Factorial Analysis-Multiple Regression and Random Forest for the Prediction of the Stabilization Time in Furnaces in the Heat Treatment Area in a Metalworking Company
by Refugio Chavez Hernandez , Jose Luis Martinez Flores, Claudia Malcon Cervera, Patricia Cano Olivos
ABSTRACT: The purpose of this study is to determine the relationship between the values and attributes of the loads in forged rings made of materials such as nickel, titanium and waspaloy in furnaces for...
Open Access Article
Exploring the Hidden Symmetry of Quaternions: Dual Balancing and Cobalancing Numbers and Their Corresponding Quaternions
by Süleyman Aydınyüz
ABSTRACT: This paper unveils the hidden symmetry of quaternions through the introduction of Dual Balancing and Dual Cobalancing numbers, along with their corresponding quaternions. We provide Binet's...
Open Access Article
Study of Burger Equation Using q-HAM with Yang-Abdel-Cattani Derivative
by Faten Aldosari, Manvendra Narayan Mishra
ABSTRACT: In order to solve the generalized Burgers equation, this research work introduces one of the most recent operators in fractional calculus. An easier-to-understand version of the problem can be...
Open Access Article
Application of Laplace Transform Method to Solve Neutral-Type Delay Differential Equation
by K. Sasikala; D. Piriadarshani , Vediyappan Govindan, Mana Donganont, Siriluk Donganont, Choonkil Park
ABSTRACT: This study investigates the use of the Laplace transform method to resolve a particular class of second-order linear initial-value neutral delay differential equations, which are prevalent in...
Open Access Article
Topological Analysis of Fractal Binary and Ternary Trees
by Thanga Rajeswari K, Manimaran A
ABSTRACT: Fractals are complex geometric objects that seem the same at different scales and have self-similarity. Because of this special characteristic, fractals can be used to simulate intricate...
Open Access Article
Robust Dimensionality Reduction: A Bootstrap-Based Evaluation of PCA with Applications in Nutritional and Environmental Sciences
by Zakiah I. Kalantan, Lujain S. Alharbi, Maryam H. Al-Zahrani, Sulafah M. Saleh Binhimd
ABSTRACT: The complex structures of vast amounts of data provide a considerable challenge to researchers. Dimensional reduction methods are reliable and transform high-dimensional data into...
Open Access Article
On PGK2-algebras and Perfect Extensions
by Mohiedeen Ahmed, Abd El-Mohsen Badawy, Essam El-Seidy, Ahmed Gaber
ABSTRACT:
Open Access Article
Supplier Selection Utilizing AHP and TOPSIS in a Fuzzy Environment Based on KPIs
by Asal Safavi, Bahram Sadeghi Bigham, Mazyar Zahedi-Seresht
ABSTRACT: In today’s competitive and rapidly changing business landscape, organizations face significant challenges such as resource limitations, fluctuating demand, and evolving customer needs. Addressing...
Open Access Article
Families of Gracefuls Spiders with ℓ(2k + 1) − k, ℓ(2k + 1) − k + 1 and ℓ(2k + 1) + k + 1 Legs
by N. B. Huamaní, M. Atoche Bravo, F. Poma
ABSTRACT: We say that a tree is a spider if has at most one vertex of degree greater than two. We obtain existence of families of gracefuls spiders with ℓ (2 k +1) − k , ℓ (2 k +1) − k +1 and ℓ (2 k...
Open Access Article
Structural Stability of the Stokes Fluid System in a Channel
by Yanping Wang, Yuanfei Li
ABSTRACT: This paper considers the two-dimensional Stokes system in a semi-infinite channel and is committed to deriving the structural stability of the model. Using the differential inequality technique,...
Open Access Article
Optimum Flows in Directed Planar Dynamic Networks. The Dynamic Approch
by Camelia Schiopu, Eleonor Ciurea
ABSTRACT: Optimum flows in directed planar dynamic networks are essential for several reasons, impacting a variety of fields. These networks present unique challenges that require advanced optimization...
Open Access Article
Indecomposable Modules, Relative Projectivity and Radical Subgroups in Finite Groups
by Zwelethemba Mpono
ABSTRACT: In the various blocks of a finite group G , irreducible characters sit with the indecomposable modules which afford them and such indecomposable modules in those blocks have got vertices and...
Open Access Article
Peirce Decomposition of Quasi Jordan Algebras
by Reem K. Alhefthi, Akhlaq A. Siddiqui, Haifa M. Tahlawi
ABSTRACT: Idempotents play a basic role in the study of algebras. Peirce decomposition induced by an idempotent is an important tool in the structure theory of non-associative algebras. In this note, we...