Results 41 to 50 of about 564 (182)

THE CLEANNESS OF THE SUBRINGS OF M_2 (Z_P)

open access: yesBarekeng
Let  be a ring. Ring  is said to be a clean ring if every element of R can be expressed as the sum of a unit and an idempotent element. Furthermore, there are r-clean rings. An r-clean ring is a generalization of a clean ring.
Shinta Nur Alfiana   +2 more
doaj   +1 more source

Min(Max) – Min(Max) – Max(Min) (∗): Compositions of Neutrosophic Fuzzy Matrices and its Application in Medical Diagnosis [PDF]

open access: yesNeutrosophic Sets and Systems
In this article, we introduce two types of compositions in Neutrosophic Fuzzy Matrices (NFM): max(min) - max(min) - min(max) (◦) and min(max) – min(max) – max(min) ( ∗) compositions.
T. Harikrishnan   +5 more
doaj   +1 more source

Study of K- Idempotent Fuzzy Matrix

open access: yesINTERNATIONAL JOURNAL OF HUMANITIES, ENGINEERING, SCIENCE AND MANAGEMENT, 2022
In this paper, we introduce and investigate the concept of k - Idempotent fuzzy matrix as a generalisation of Idempotent fuzzy matrix via permutations in this paper.  
openaire   +1 more source

Amenability Constants for Unconditional Sums of Banach Algebras

open access: yesMathematische Nachrichten, Volume 299, Issue 9, Page 2472-2494, September 2026.
ABSTRACT We study Johnson amenability for unconditional direct sums of Banach algebras. Given a family (Ai)i∈I$(A_i)_{i\in I}$ of Banach algebras and a Banach sequence lattice E$E$ on I$I$, the E$E$‐sum ⨁i∈IAiE${\bigl (\bigoplus _{i\in I} A_i\bigr)}_{\!E}$ carries a natural Banach algebra structure via coordinatewise multiplication.
Tomasz Kania, Jerzy Ka̧kol
wiley   +1 more source

Cubic Idempotence Preserver Problem in Hermitian Matrix Space

open access: yesJournal of Harbin University of Science and Technology
Preserver problems are the study of preserving maps of certain invariants on a given mathematical structure. In order to preserve the cubic idempotent of Hermitian matrix space, we study the image from the basis of 2 × 2-dimensional Hermitian matrix ...
ZHANG Haoran, XU Jinli
doaj   +1 more source

Idempotent and compact matrices on linear lattices: a survey of some lattice results and related solutions of finite relational equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1993
After a survey of some known lattice results, we determine the greatest idempotent (resp. compact) solution, when it exists, of a finite square rational equation assigned over a linear lattice.
Fortunata Liguori   +2 more
doaj   +1 more source

Idempotent completions of equivariant matrix factorization categories

open access: yesJournal of Algebra, 2023
6 pages.
Michael K. Brown, Mark E. Walker
openaire   +2 more sources

Not all Temperature Shocks are Alike: Disentangling Heat and High Temperature Shocks and Their Effects on Inflation in Australia

open access: yesEconomic Record, Volume 102, Issue 338, Page 323-349, September 2026.
We study the effects of heat and high temperature shocks on inflation in Australia using monthly, state‐level temperature anomaly data via two stages. In the first stage, we decompose temperature anomalies into orthogonal components using a structural vector autoregression with long‐run restrictions.
Tan Dat Huynh, Mengheng Li
wiley   +1 more source

Chimera state in coupled map lattice of matrices

open access: yesLietuvos Matematikos Rinkinys, 2021
In recent years, a lot of research has focused on understanding the behavior of when synchronous and asynchronous phases occur, that is, the existence of chimera states in various networks.
Kotryna Mačernytė, Rasa Šmidtaitė
doaj   +1 more source

On the chain of commuting operators on Banach spaces

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 9, September 2026.
Abstract An operator T$T$ on a Banach space is said to be of chain N$N$ if there exist non‐scalar operators S1,⋯,SN−1$S_1,\dots,S_{N-1}$ and a non‐zero compact operator K$K$ such that T↔S1↔S2↔⋯↔SN−1↔K,$$\begin{equation*} T \leftrightarrow S_1 \leftrightarrow S_2 \leftrightarrow \dots \leftrightarrow S_{N-1} \leftrightarrow K, \end{equation*}$$where A↔B$
Tomasz Szczepanski
wiley   +1 more source

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