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JMB Journal of Microbiolog and Biotechnology

OPEN ACCESS eISSN 0454-8124
pISSN 1225-6951
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Article
31 December 2023

Some Results on Simple-Direct-Injective Modules

Derya Keskin Tütüncü, Rachid Tribak*

Kyungpook Mathematical Journal 2023; 63: 521-537

A module M is called a simple-direct-injective module if, whenever A and B are simple submodules of M with
Key Words:

Dedekind domain, Simple-Direct-Injective module, Left (Right) simple-direct-injective ring.

Article
31 December 2023

Generalized k-Balancing and k-Lucas Balancing Numbers and Associated Polynomials

Kalika Prasad and Munesh Kumari*, Jagmohan Tanti

Kyungpook Mathematical Journal 2023; 63: 539-550

In this paper, we define the generalized k-balancing numbers {Bn(
Key Words:

k-balancing numbers, k-Lucas balancing numbers, k-balancing and k-Lucas balancing polynomials, Partial sums

Article
31 December 2023

Commutativity Criteria for a Factor Ring R/P Arising from P-Centralizers

Lahcen Oukhtite* and Karim Bouchannafa, My Abdallah Idrissi

Kyungpook Mathematical Journal 2023; 63: 551-560

In this paper we consider a more general class of centralizers called I-centralizers. More precisely, given a prime ideal P of an arbitrary ring R we establish a connection between certain algebraic ...
Key Words:

Prime ring, Prime ideal, P-centralizer, Commutativity

Article
31 December 2023

Certain Clean Decompositions for Matrices over Local Rings

Yosum Kurtulmaz, Handan Köse, Huanyin Chen*

Kyungpook Mathematical Journal 2023; 63: 561-569

An element a∈R is strongly rad-clean provided that there exists an idempot...
Key Words:

Strongly clean matrix, Strongly rad-clean matrix, Local ring, Power-series

Article
31 December 2023

On *w-Finiteness Conditions

Jung Wook Lim

Kyungpook Mathematical Journal 2023; 63: 571-575

Let D be an integral domain and let * be a star-operation on D. In this article, we give new characterizations of
Key Words:

*w-Noetherian domain, *w

Article
31 December 2023

A Note on Marcinkiewicz Integral Operators on Product Domains

Badriya Al-Azri, Ahmad Al-Salman*

Kyungpook Mathematical Journal 2023; 63: 577-591

In this paper we establish the Lp boundedness of Marcinkiewicz integral operators on product domains with rough kernels satisfying a weak size condition. We assume that our kernels are supported on surfaces generated by cu...
Key Words:

Marcinkiewicz operators, Product domains, Lp estimates, Maximal functions, Convex functions

Article
31 December 2023

Generalized Chen's Conjecture for Biharmonic Maps on Foliations

Xueshan Fu, Seoung Dal Jung*

Kyungpook Mathematical Journal 2023; 63: 593-610

In this paper, we prove the generalized Chen's conjecture for (F,
Key Words:

Riemannian foliation, Transversally harmonic map, Transversally biharmonic map, (F,F)&am

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