International Journal of Mathematics and Mathematical Sciences

2021 - 2021

Continuation of International Journal of Mathematics and Mathematical Sciences.

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Volume 2021, issue 1, 2021

A Study of Nil Ideals and Kothe’s Conjecture in Neutrosophic Rings

Mohammad Abobala

Catalan Transform of k‐Balancing Sequences

Asim Patra and Mohammed K. A. Kaabar

Convergence Theorems for the Variational Inequality Problems and Split Feasibility Problems in Hilbert Spaces

Panisa Lohawech, Anchalee Kaewcharoen and Ali Farajzadeh

Bounded Odd Inverse Pareto Exponential Distribution: Properties, Estimation, and Regression

Suleman Nasiru, Abdul Ghaniyyu Abubakari and Irene Dekomwine Angbing

Biderivations and Commuting Linear Maps on Topologically Simple ℒ∗‐Algebras

Abdelaziz Ben Yahya

Corrigendum to “Some Properties of Curvature Tensors and Foliations of Locally Conformal Almost Kähler Manifolds”

Ntokozo Sibonelo Khuzwayo and Fortuné Massamba

Some Random Fixed‐Point Theorems for Weakly Contractive Random Operators in a Separable Banach Space

Kenza Benkirane, Abderrahim EL Adraoui and El Miloudi Marhrani

Handling Censoring and Censored Data in Survival Analysis: A Standalone Systematic Literature Review

Anthony Joe Turkson, Francis Ayiah-Mensah and Vivian Nimoh

On the Motion of Two Microspheres in a Stokes Flow Driven by an External Oscillator Field

Mohammed M. Al-Hatmi and Anton Purnama

On a Characterization of Finite‐Dimensional Vector Spaces

Marat V. Markin

Stability of Fluid Flow through a Channel with Flexible Walls

Marianna A. Shubov and Madeline M. Edwards

Impulse Propagation in Compositions and Words

Margaret Archibald, Aubrey Blecher, Charlotte Brennan, Arnold Knopfmacher and Toufik Mansour

A Conjecture on Super Edge‐Magic Total Labeling of 4‐Cycle Books

Mudin Simanihuruk, Tri Atmojo Kusmayadi, Baki Swita, Minsi Romala and Friska Damanik

Output Reachable Set Analysis for Periodic Positive Systems

Ilyas Sitli, Fouad Lahmidi, Abdelwahed Namir and Mouhcine Naim

On the Determinants of the Square‐Type Stirling Matrix and Bell Matrix

Eunmi Choi and Jiin Jo

Pricing Multivariate European Equity Option Using Gaussians Mixture Distributions and EVT‐Based Copulas

Abba Mallam Hassane, Barro Diakarya, Yaméogo WendKouni and Saley Bisso

A Note on the Stability Analysis of Fuzzy Nonlinear Fractional Differential Equations Involving the Caputo Fractional Derivative

Ali El Mfadel, Said Melliani and M’hamed Elomari

Neighborhoods and Manifolds of Immersed Curves

Andrea C. G. Mennucci

Derivations of a Sullivan Model and the Rationalized G‐Sequence

Oteng Maphane

An Optimal Lockdown Relaxation Strategy for Minimizing the Economic Effects of COVID‐19 Outbreak

A. C. Mahasinghe, K. K. W. H. Erandi and S. S. N. Perera

Some Properties of Curvature Tensors and Foliations of Locally Conformal Almost Kähler Manifolds

Ntokozo Sibonelo Khuzwayo and Fortuné Massamba

New Properties of Dual Continuous K‐g‐Frames in Hilbert Spaces

Abdeslam Touri, Hatim Labrigui and Mohamed Rossafi

Anomaly Detection in Health Insurance Claims Using Bayesian Quantile Regression

Ezekiel N. N. Nortey, Reuben Pometsey, Louis Asiedu, Samuel Iddi and Felix O. Mettle

Mathematical Modelling of Glucose‐Insulin System and Test of Abnormalities of Type 2 Diabetic Patients

Wellars Banzi, Immaculate Kambutse, Vincent Dusabejambo, Eric Rutaganda, Froduald Minani, Japhet Niyobuhungiro, Lydie Mpinganzima and Jean Marie Ntaganda

Lexicographically Maximum Contraflow Problem with Vertex Capacities

Phanindra Prasad Bhandari and Shree Ram Khadka

On the Transient Atomic/Heat Diffusion in Cylinders and Spheres with Phase Change: A Method to Derive Closed‐Form Solutions

I. L. Ferreira, A. Garcia and A. L. S. Moreira

Representation Theory of Groups and D‐Modules

Ibrahim Nonkané

Network Reconfiguration with Orientation‐Dependent Transit Times

Hari Nandan Nath, Urmila Pyakurel and Tanka Nath Dhamala

Mixed Spline Smoothing and Kernel Estimator in Biresponse Nonparametric Regression

Dyah P. Rahmawati, I. N. Budiantara, Dedy D. Prastyo and Made A. D. Octavanny

On the Solutions of Three‐Variable Frobenius‐Related Problems Using Order Reduction Approach

Tian-Xiao He, Peter J.-S. Shiue and Rama Venkat

The Reverse of the Intermediate Value Theorem in Some Topological Spaces

Oussama Kabbouch and Mustapha Najmeddine

A New Class of Contact Pseudo Framed Manifolds with Applications

K. L. Duggal

Multivalent Functions Related with an Integral Operator

Syed Ghoos Ali Shah, Saqib Hussain, Saima Noor, Maslina Darus and Ibrar Ahmad

Novel Theorems and Algorithms Relating to the Collatz Conjecture

Michael R. Schwob, Peter Shiue and Rama Venkat

A Note on the Difference of Powers and Falling Powers

Taoufik Sabar

Real Root Polynomials and Real Root Preserving Transformations

Suchada Pongprasert, Kanyarat Chaengsisai, Wuttichai Kaewleamthong and Puttarawadee Sriphrom

Fuzzy Prime Ideal Theorem in Residuated Lattices

Pierre Carole Kengne, Blaise Blériot Koguep and Celestin Lele

On the Irreducibility of Polynomials Associated with the Complete Residue Systems in any Imaginary Quadratic Fields

Phitthayathon Phetnun, Narakorn Rompurk Kanasri and Patiwat Singthongla

Investigation of the Spectral Properties of a Non‐Self‐Adjoint Elliptic Differential Operator

Arezoo Ghaedrahmati and Ali Sameripour

Implementation of a Transform‐Minutiae Fusion‐Based Model for Fingerprint Recognition

Justice Kwame Appati, Prince Kofi Nartey, Ebenezer Owusu and Ismail Wafaa Denwar

Modified Cauchy Problem with Impulse Action for Parabolic Shilov Equations

Galina Unguryan

Fourier Transformation and Stability of a Differential Equation on L1(ℝ)

Hamid Rezaei, Zahra Zafarasa and Lotfollah Karimi

Some Generalizations of Frames in Hilbert Modules

Mohamed Rossafi and Samir Kabbaj

Solving Poisson Equation by Distributional HK‐Integral: Prospects and Limitations

Amila J. Maldeniya, Naleen C. Ganegoda, Kaushika De Silva and Sanath K. Boralugoda

Central Extension of Left Alternative Algebras and the Second Cohomology Group

Said Boulmane

Dynamical Modelling of Bone Formation and Resorption under Impulsive Estrogen Supplement: Effects of Parathyroid Hormone and Prolactin

Supassorn Aekthong and Chontita Rattanakul

Radial Radio Number of Hexagonal and Its Derived Networks

Kins Yenoke, Mohammed K. A. Kaabar, Mohammed M. Ali Al-Shamiri and R. C. Thivyarathi

Zero Controllability Criterion for Discrete Positive Systems with Multiple Delays on Both States and Inputs

Mouhcine Naim

Modeling the Dependence of Losses of a Financial Portfolio Using Nested Archimedean Copulas

Wendkouni Yaméogo and Diakarya Barro

The Stability of the Model and Simulation, Control Issues for Ship System, Education, and Research

Nguyen Cong Danh

An Iterative Method for Solving Split Monotone Variational Inclusion Problems and Finite Family of Variational Inequality Problems in Hilbert Spaces

Wanna Sriprad and Somnuk Srisawat

The Log‐Asset Dynamic with Euler–Maruyama Scheme under Wishart Processes

Raphael Naryongo, Philip Ngare and Anthony Waititu

Direction Curves Associated with Darboux Vectors Fields and Their Characterizations

Nidal Echabbi and Amina Ouazzani Chahdi

Controllability of a Family of Nonlinear Population Dynamics Models

Yacouba Simporé

Sequential Truncation of R‐Vine Copula Mixture Model for High‐Dimensional Datasets

Fadhah Amer Alanazi

New Robust PCA for Outliers and Heavy Sparse Noises’ Detection via Affine Transformation, the L∗,w and L2,1 Norms, and Spatial Weight Matrix in High‐Dimensional Images: From the Perspective of Signal Processing

Peidong Liang, Habte Tadesse Likassa, Chentao Zhang and Jielong Guo

On Total Vertex Irregularity Strength of Hexagonal Cluster Graphs

Nurdin Hinding, Hye Kyung Kim, Nurtiti Sunusi and Riskawati Mise

The Mechanical Behavior of a Multispring System Revealing Absurdity in the Relativistic Force Transformation

Mohammad Javanshiry

Some Inequalities for the Maximum Modulus of Rational Functions

Robert Gardner, Narendra Kumar Govil and Prasanna Kumar

Application of a New Generalized Fractional Derivative and Rank of Control Measures on Cholera Transmission Dynamics

Kumama Regassa Cheneke, Koya Purnachandra Rao and Geremew Kenassa Edessa

Inverse Problem Related to Boundary Shape Identification for a Hyperbolic Differential Equation

Fagueye Ndiaye and Idrissa Ly

On a Characterization of Convergence in Banach Spaces with a Schauder Basis

Marat V. Markin and Olivia B. Soghomonian

Relative Gottlieb Groups of Embeddings between Complex Grassmannians

J. B. Gatsinzi