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In the present paper automorphisms, local and 2-local automorphisms of $n$-dimensional null-filiform and filiform associative algebras are studied. Namely, a common form of the matrix of automorphisms and local automorphisms of these…

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

The present paper is devoted to study 2-local derivations on W-algebra $W(2,2)$ which is an infinite-dimensional Lie algebras with some out derivations. We prove that all 2-local derivations on the W-algebra $W(2,2)$ are derivation. We also…

Rings and Algebras · Mathematics 2020-03-13 Xiaomin Tang

The paper is devoted to 2-local derivations on matrix algebras over commutative regular algebras. We give necessary and sufficient conditions on a commutative regular algebra to admit 2-local derivations which are not derivations. We prove…

Operator Algebras · Mathematics 2013-04-12 Sh. A. Ayupov , K. K. Kudaybergenov , A. K. Alauadinov

In the present paper we study local and 2-local derivations of locally finite split simple Lie algebras. Namely, we show that every local and 2-local derivation on such Lie algebra is a derivation.

Rings and Algebras · Mathematics 2020-05-26 Shavkat Ayupov , Karimbergen Kudaybergenov , Bakhtiyor Yusupov

The present paper is devoted to study 2-local derivations on infinite-dimensional Lie algebras over a field of characteristic zero. We prove that all 2-local derivations on the Witt algebra as well as on the positive Witt algebra are…

Rings and Algebras · Mathematics 2019-01-15 Shavkat Ayupov , Baxtiyor Yusupov

The present paper is devoted to local and 2-local derivations and automorphism of complex finite-dimensional simple Leibniz algebras. We prove that all local derivations and 2-local derivations on a finite-dimensional complex simple Leibniz…

Rings and Algebras · Mathematics 2017-09-11 Shavkat Ayupov , Karimbergen Kudaybergenov , Bakhrom Omirov

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 show that any local derivation on the solvable Leibniz algebras with model or abelian nilradicals, whose the dimension of complementary space is maximal is a derivation. We show that solvable Leibniz algebras with abelian nilradicals,…

Rings and Algebras · Mathematics 2019-11-12 Sh. A. Ayupov , A. Kh. Khudoyberdiyev , B. B. Yusupov

In the present paper we prove that every 2-local derivation on a semi-finite von Neumann algebra is a derivation.

Operator Algebras · Mathematics 2014-09-22 Shavkat Ayupov , Farkhad Arzikulov

This paper is devoted to study local automorphisms of $p$-filiform Leibniz algebras. We prove that $p$-filiform Leibniz algebras as a rule admit local automorphisms which are not automorphisms.

Rings and Algebras · Mathematics 2023-06-21 Bakhtiyor Yusupov

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

We prove that every local derivation on a finite-dimensional semisimple Lie algebra over an algebraically closed field of characteristic zero is a derivation. We also give examples of finite-dimensional nilpotent Lie algebras $\mathcal{L}$…

Rings and Algebras · Mathematics 2015-08-24 Shavkat Ayupov , Karimbergen Kudaybergenov

2-local derivation is a generalized derivation for a Lie algebra, which plays an important role to the study of local properties of the structure of the Lie algebra. In this paper, we prove that every 2-local derivation on the conformal…

Rings and Algebras · Mathematics 2021-03-09 Yufang Zhao , Yongsheng Cheng

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

The paper is devoted to the study of local derivations and automorphisms of nilpotent Lie algebras. Namely, we proved that nilpotent Lie algebras with indices of nilpotency $3$ and $4$ admit local derivation (local automorphisms) which is…

Rings and Algebras · Mathematics 2024-05-08 Abror Khudoyberdiyev , Doston Jumaniyozov

In this work, we introduce the notion of local and $2$-local $\delta$-derivations and describe local and $2$-local $\frac{1}{2}$-derivation of finite-dimensional solvable Lie algebras with filiform, Heisenberg, and abelian nilradicals.…

Rings and Algebras · Mathematics 2024-02-16 Abror Khudoyberdiyev , Bakhtiyor Yusupov

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 aims to study the local derivations, 2-local automorphisms and local automorphisms on the super-Virasoro algebras. The primary focus is to establish that every local derivation of the super-Virasoro algebras is indeed a…

Rings and Algebras · Mathematics 2024-01-11 Qingyan Wu , Shoulan Gao , Dong Liu , Chang Ye

In this paper we prove that any local automorphism on the solvable Leibniz algebras with null-filiform and naturally graded non-Lie filiform nilradicals, whose dimension of complementary space is maximal is an automorphism. Furthermore, the…

Rings and Algebras · Mathematics 2022-06-15 F. N. Arzikulov , I. A. Karimjanov , S. M. Umrzaqov

In the present paper, local derivations and local automorphisms of five-dimensional naturally graded nilpotent associative algebras are studied. Namely, a general form of the matrices of local derivations and local automorphisms of algebras…

Rings and Algebras · Mathematics 2026-04-15 Farkhodzhon Arzikulov , Utkir Khakimov , Abduqaxxor Qurbonov
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