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JMB Journal of Microbiolog and Biotechnology

OPEN ACCESS eISSN 0454-8124
pISSN 1225-6951
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Article
31 March 2024

A Characterization of Nonnil-Projective Modules

Hwankoo Kim, Najib Mahdou and El Houssaine Oubouhou

Kyungpook Mathematical Journal 2024; 64: 1-14

Recently, Zhao, Wang, and Pu introduced and studied new concepts of nonnil-commutative diagrams and nonnil-projective modules. They proved that an R-module that is nonnil-isomorphic to a projective module is nonnil-projective, and they propose...
Key Words:

Nonnil-commutative diagram, Nonnil-exact sequence, Nonnil-projective module

Article
31 March 2024

Generalized Inverses and Solutions to Equations in Rings with Involution

Yue Sui and Junchao Wei

Kyungpook Mathematical Journal 2024; 64: 15-30

In this paper, we focus on partial isometry elements and strongly EP elements or a ring. We construct characterizing equations such that an element which is both group invertible and MP-invertible, is a partial isometry element, or is strongly EP, ex...
Key Words:

EP element, Normal EP element, Strongly EP element, Partial isometry

Article
31 March 2024

Reverse Inequalities through k-weighted Fractional Operators with Two Parameters

Bouharket Benaissa, Noureddine Azzouz

Kyungpook Mathematical Journal 2024; 64: 31-46

The aim of this paper is to present an approach to improve reverse Minkowski and Hölder-type inequalities using k-weighted fractional integral operators a
Key Words:

k-weighted fractional integral operator, Minkowski's inequality, Hölder's inequality, k-Riemann-Liouville, k-Hadamard, k-Katugompola, k-Conformable

Article
31 March 2024

A Study on Two Subclasses of Analytic and Univalent Functions with Negative Coefficients Involving the Poisson Distribution Series

Abdul Moneim Yousof Lashin, Abeer Omard Ahmad Badghaish, Fayzah Awad Alshehri

Kyungpook Mathematical Journal 2024; 64: 47-55

This paper introduces two new subclasses of analytical functions with negative coefficients and derives coefficient estimates for these novel subclasses. Further, inclusion relations and necessary and sufficient conditions for the Poisson distributio...
Key Words:

The Poisson distribution series, Analytic functions, Univalent functions, Convex funcions, Coefficient inequalities

Article
31 March 2024

Polylogarithms and Subordination of Some Cubic Polynomials

Manju Yadav, Sushma Gupta and Sukhjit Singh

Kyungpook Mathematical Journal 2024; 64: 57-68

Let V3(z, f) and σ3(1
Key Words:

Convex functions, Cesàro means, De la Vallée Poussin means, Subordination, Hadamard product

Article
31 March 2024

Strong Convergence of a Bregman Projection Method for the Solution of Pseudomonotone Equilibrium Problems in Banach Spaces

Olawale Kazeem Oyewole, Lateef Olakunle Jolaoso, Kazeem Olalekan Aremu

Kyungpook Mathematical Journal 2024; 64: 69-94

In this paper, we introduce an inertial self-adaptive projection method using Bregman distance techniques for solving pseudomonotone equilibrium problems in reflexive Banach spaces. The algorithm requires only one projection onto the feasible set wit...
Key Words:

equilibrium problem, strongly pseudomonotone, strong convergence, Banach space, quasi-ϕ-nonexpansive mapping, fixed point

Article
31 March 2024

Polynomial-Filled Function Algorithm for Unconstrained Global Optimization Problems

Salmah, Ridwan Pandiya

Kyungpook Mathematical Journal 2024; 64: 95-111

The filled function method is useful in solving unconstrained global optimization problems. However, depending on the type of function, and parameters used, there are limitations that cause difficultiies in implemenations. Exponential and logarithmic...
Key Words:

Global optimization, filled function method, nonlinear programming, global minimizer, auxiliary function approach

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