English
Related papers

Related papers: 2-local derivations on Witt algebras

200 papers

Let $L$ be a locally compact Hausdorff space. Suppose $A$ is a C$^*$-algebra with the property that every weak-2-local derivation on $A$ is a {\rm(}linear{\rm)} derivation. We prove that every weak-2-local derivation on $C_0(L,A)$ is a…

Operator Algebras · Mathematics 2016-08-16 E. Jordá , A. M. Peralta

This paper is devoted to study local derivations on the $n$-th Schr{\"o}dinger algebra $\mathcal{S}_{n}.$ We prove that every local derivation on $\mathcal{S}_{n}$ is a derivation.

Rings and Algebras · Mathematics 2024-06-10 Amir Alauadinov , Bakhtiyor Yusupov , Doston Jumaniyozov

The paper is devoted to the description of $2$-local derivations on von Neumann algebras. Earlier it was proved that every $2$-local derivation on a semi-finite von Neumann algebra is a derivation. In this paper, using the analogue of…

Operator Algebras · Mathematics 2014-10-07 Shavkat Ayupov , Karimbergen Kudaybergenov

In the present paper 2-local derivations on various algebras of infinite dimensional matrix-valued functions on a compact are considered. It is proved that every 2-local derivation on such algebra is a derivation. Also we explain that the…

Operator Algebras · Mathematics 2015-09-21 Shavkat Ayupov , Farhodjon Arzikulov

We prove that every local derivation on a complex semisimple finite-dimensional Leibniz algebra is a derivation.

Rings and Algebras · Mathematics 2023-06-22 Ivan Kaygorodov , Karimbergen Kudaybergenov , Inomjon Yuldashev

We show that in the class of solvable Lie algebras there exist algebras which admit local derivations which are not ordinary derivation and also algebras for which every local derivation is a derivation. We found necessary and sufficient…

Rings and Algebras · Mathematics 2018-03-20 Sh. A. Ayupov , A. Kh. Khudoyberdiyev

We prove that, for every complex Hilbert space $H$, every weak-2-local derivation on $B(H)$ or on $K(H)$ is a linear derivation. We also establish that every weak-2-local derivation on an atomic von Neumann algebra or on a compact…

Operator Algebras · Mathematics 2017-04-05 Juan Carlos Cabello , Antonio M. Peralta

The present paper is devoted to study 2-local derivations on the Block-type Lie algebra which is an infinite-dimensional Lie algebra with some outer derivations. We prove that every 2-local derivation on the Block-type Lie algebra is a…

Rings and Algebras · Mathematics 2026-02-11 Qiufan Chen , Xiaohan Guo

The paper is devoted to 2-local derivations and 2-local automorphisms on the algebra $B(H)$ of all bounded linear operators on a Hilbert space $H.$ We prove that every 2-local derivation on $B(H)$ is a derivation. A similar result is…

Operator Algebras · Mathematics 2011-11-15 Sh. A. Ayupov , K. K. Kudaybergenov

The present paper is devoted to studying 2-local derivations on the planar Galilean conformal algebra. We prove that every 2-local derivation on the planar Galilean conformal algebra is a derivation.

Rings and Algebras · Mathematics 2022-10-31 Qiu-Fan Chen , Yan He

In this paper, the generalized Loop Heisenberg-Virasoro algebra is introduced. Firstly, we determine the derivations on the generalized Loop Heisenberg-Virasoro algebra. Then we show that all 2-local derivations are derivations.…

Rings and Algebras · Mathematics 2025-10-27 Qingyan Ren , Liming Tang

Given a finite-dimensional complex simple $\omega$-Lie algebras $\mathfrak{}$ over $\mathbb{C}$. We prove that every local ,$2-$local derivation is a derivation and every local (resp. 2-local) automorphisms are automorphisms or an…

Rings and Algebras · Mathematics 2025-05-02 Hassan Oubba

This paper is devoted to the study of local and 2-local derivations of nullfiliform, filiform and naturally graded quasi-filiform associative algebras. We prove that these algebras as a rule admit local derivations which are not…

Rings and Algebras · Mathematics 2023-06-27 K. K. Abdurasulov , Sh. A. Ayupov , B. B. Yusupov

We prove that every {\rm(}not necessarily linear nor continuous{\rm)} 2-local triple derivation on a von Neumann algebra $M$ is a triple derivation, equivalently, the set Der$_{t} (M)$, of all triple derivations on $M,$ is algebraically…

Operator Algebras · Mathematics 2015-12-11 Karimbergen Kudaybergenov , Timur Oikhberg , Antonio M. Peralta , Bernard Russo

We introduce the notion of weak-2-local derivation (respectively, $^*$-derivation) on a C$^*$-algebra $A$ as a (non-necessarily linear) map $\Delta : A\to A$ satisfying that for every $a,b\in A$ and $\phi\in A^*$ there exists a derivation…

Operator Algebras · Mathematics 2015-03-05 Mohsen Niazi , Antonio M. Peralta

We determine all $\delta$-biderivations for the Witt algebra, the Virasoro algebra, the $W$-algebras $W(a,b)$ and their universal central extensions $\widetilde W(a,b)$, and then give some applications.

Rings and Algebras · Mathematics 2026-03-09 Chengkang Xu

In the present paper, we prove that a local derivation on the octonion (Cayley) algebra $\mathbb{O}$ over an arbitrary field, satisfying some conditions is a derivation, and every 2-local derivation on $\mathbb{O}$ is a Jordan derivation.

Rings and Algebras · Mathematics 2023-05-24 F. N. Arzikulov , I. A. Karimjanov , S. Uguz

In the present paper, we prove that every local and $2$-local derivation of the complex finite-dimensional simple Filippov algebra is a derivation. As a corollary we have the description of all local and $2$-local derivations of complex…

Rings and Algebras · Mathematics 2021-08-03 Bruno Leonardo Macedo Ferreira , Ivan Kaygorodov , Karimbergen Kudaybergenov

We characterize derivations and 2-local derivations from $M_{n}(\mathcal{A})$ into $M_{n}(\mathcal{M})$, $n \ge 2$, where $\mathcal{A}$ is a unital algebra over $\mathbb{C}$ and $\mathcal{M}$ is a unital $\mathcal{A}$-bimodule. We show that…

Rings and Algebras · Mathematics 2018-01-29 Wenbo Huang , Jiankui Li , Wenhua Qian

The present paper presents a survey of some recent results devoted to derivations, local derivations and 2-local derivations on various algebras of measurable operators affiliated with von Neumann algebras. We give a complete description of…

Operator Algebras · Mathematics 2016-02-22 Shavkat Ayupov , Karimbergen Kudaybergenov