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Let $\mathcal{A}$ be a unital algebra, $\delta$ be a linear mapping from $\mathcal{A}$ into itself and $m$, $n$ be fixed integers. We call $\delta$ an (\textit{m, n})-derivable mapping at $Z$, if…

Operator Algebras · Mathematics 2012-03-13 Jiankui Li , Qihua Shen , Jianbin Guo

In this paper, we investigate related properties of some particular derivations and give some characterizations of additive derivations in MV-algebras. Then, we obtain that the fixed point set of additive derivations is still an MV-algebra.…

Logic · Mathematics 2017-09-18 Jun Tao Wang , Bijan Davvaz , Peng Fei He

The study of graph products is a major research topic and typically concerns the term $f(G*H)$, e.g., to show that $f(G*H)=f(G)f(H)$. In this paper, we study graph products in a non-standard form $f(R[G*H]$ where $R$ is a "reduction", a…

Computational Complexity · Computer Science 2014-08-06 Parinya Chalermsook , Bundit Laekhanukit , Danupon Nanongkai

We have derived that on certain Banach spaces having a graph structure $G$, the iterations for asymptotically $G$-nonexpansive map will converge weakly towards a fixed point. This result unifies and extends several theorems on fixed points…

Functional Analysis · Mathematics 2022-02-28 Asrifa Sultana

Banach's fixed point theorem in linear n-normed space is being developed. Also, we present several theorems on fixed points in linear n-normed space.

Metric Geometry · Mathematics 2022-10-17 Prasenjit Ghosh , T. K. Samanta

Let $\mathcal{A}$ be a unital algebra over the complex field $\mathbb{C}$. A linear mapping $\delta$ from $\mathcal{A}$ into itself is called a weak (\textit{m,n,l})-Jordan centralizer if…

Operator Algebras · Mathematics 2011-06-16 Jianbin Guo , Jiankui Li , Qihua Shen

Using fixed point methods, we prove the generalized Hyers--Ulam--Rassias stability of ternary homomorphisms, and ternary multipliers in ternary Banach algebras for the Jensen--type functional equation…

Functional Analysis · Mathematics 2009-12-21 A. Ebadian , Sh. Najafzadeh

In this paper, using generalized metric projection, we propose a new extragradient method for finding a common element of the solutions set of a generalized equilibrium problem and a variational inequality for an $\alpha$-inverse-strongly…

Functional Analysis · Mathematics 2016-11-01 Zeynab Jouymandi , Fridoun Moradlou

In this paper, we investigate the existence and uniqueness of fixed point for partially ordered contraction type operators in Banach Space. We also present applications to integral and differential equations.

Functional Analysis · Mathematics 2017-10-17 Jinxiu Mao , Zengqin Zhao

The paper is devoted to 2-local derivations on matrix algebras over unital semi-prime Banach algebras. For a unital semi-prime Banach algebra $\mathcal{A}$ with the inner derivation property we prove that any 2-local derivation on the…

Operator Algebras · Mathematics 2014-11-11 Shavkat Ayupov , Karimbergen Kudaybergenov

Jordan isomorphisms of rings are defined by two equations. The first one is the equation of additivity while the second one concerns multiplicativity with respect to the so-called Jordan product. In this paper we present results showing…

Operator Algebras · Mathematics 2007-05-23 Lajos Molnar

Let $A$ and $X$ be Banach algebras and let $X$ be an algebraic Banach $A-$module. Then the $\ell^1-$direct sum $A\times X$ equipped with the multiplication $$(a,x)(b,y)=(ab, ay+xb+xy)\quad (a,b\in A, x,y\in X)$$ is a Banach algebra, denoted…

Functional Analysis · Mathematics 2016-08-22 Mohammad Ramezanpour , Seddigheh Barootkoob

We solve an open problem in spectral geometry: the construction of finite-dimensional, discrete geometries coordinatized by non-simple, exceptional Jordan algebras. The approach taken is readily generalisable to broad classes of…

Mathematical Physics · Physics 2025-03-17 Shane Farnsworth

In this short note we prove that every Jordan derivation of triangular algebras is a derivation.

Rings and Algebras · Mathematics 2007-06-14 Xuehan Cheng , Wu Jing

We put forward a definition for spectral triples and algebraic backgrounds based on Jordan coordinate algebras. We also propose natural and gauge-invariant bosonic configuration spaces of fluctuated Dirac operators and compute them for…

Mathematical Physics · Physics 2024-06-19 Fabien Besnard , Shane Farnsworth

The applicability of classical Banach contraction mapping principle in solving diverse problems caught the attention of several researchers in various fields of science and engineering. Since its introduction, many extensions and…

Functional Analysis · Mathematics 2025-06-24 Arsalan Hojjat Ansari , Olaoluwa Jeremiah Omidire

We study a class of matrix function algebras, here denoted $\mathcal{T}^{+}(\mathcal{C}_n)$. We introduce a notion of point derivations, and classify the point derivations for certain finite dimensional representations of…

Operator Algebras · Mathematics 2009-11-12 Benton L. Duncan

Let A and A' be two Cstar-algebras with identities I_A and I_A', respectively, and P_1 and P_2 = I_A - P_1 nontrivial projections in A. In this paper we study the characterization of multiplicative star-Lie-Jordan-type maps, where the…

Operator Algebras · Mathematics 2020-05-19 Bruno Leonardo Macedo Ferreira , Bruno Tadeu Costa

We introduce a novel class of self-mappings on metric spaces, called \textbf{PA-contractions} (Path-Averaged Contractions), defined by an averaging condition over iterated distances. We prove that every continuous PA-contraction on a…

Functional Analysis · Mathematics 2025-10-03 Nicola Fabiano

In this paper, we introduce new implicit and explicit iterative schemes which converge strongly to a unique solution of variational inequality problems for strongly accretive operators over a common fixed point set of finite family of…

Functional Analysis · Mathematics 2010-07-07 Eric U. Ofoedu