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The automorphisms groups and derivation algebras of all two-dimensional algebras over algebraically closed fields are described.

环与代数 · 数学 2018-12-10 H. Ahmed , U. Bekbaev , I. Rakhimov

In this paper we present a complete classification (isomorphism classes with some isomorphism invariants) of complex associative algebras up to dimension five (including both cases: unitary and non-unitary). In some symbolic computations we…

环与代数 · 数学 2009-10-07 I. S. Rakhimov , I. M. Rikhsiboev , W. Basri

We study the automorphism groups of finite-dimensional cyclic Leibniz algebras. In this connection, we consider the relationships between groups, modules over associative rings and Leibniz algebras.

环与代数 · 数学 2021-08-21 Leonid A. Kurdachenko , Aleksandr A. Pypka , Igor Ya. Subbotin

In this article we study homotopes of finite-dimensional algebras (not necessarily, associative). In the case of associative algebras we study homotopes by methods of Category theory and give description of so-called well-tempered elements…

环与代数 · 数学 2020-05-05 Ilya Zhdanovskiy

In this paper, we focus on derivations and centroids of four dimensional associative algebras. Using an existing classification result of low dimensional associative algebras, we describe the derivations and centroids of four dimensional…

环与代数 · 数学 2017-02-21 A. O. Abdulkareem , M. A. Fiidow , I. S. Rakhimov

A finite-dimensional unital and associative algebra over $\mathbb{R}$, or what we shall call simply "an algebra" in this paper for short, generalities the construction by which we derive the complex numbers by "adjoining an element $i$" to…

环与代数 · 数学 2017-08-04 Nathan BeDell

In the paper we give a complete classification of $2$-dimensional evolution algebras over algebraically closed fields, describe their groups of automorphisms and derivation algebras.

环与代数 · 数学 2017-11-22 H. Ahmed , U. Bekbaev , I. Rakhimov

We describe automorphisms and derivations of several important associative and Lie algebras of infinite matrices over a field.

环与代数 · 数学 2021-08-12 Oksana Bezushchak

A description of group automorphisms of all two-dimensional algebras, considered up to isomorphism, over any basic field is provided.

环与代数 · 数学 2024-11-19 Sh. Eshmirzayev , U. Bekbaev

This is a survey on the automorphism groups in various classes of affine algebraic surfaces and the algebraic group actions on such surfaces. Being infinite-dimensional, these automorphism groups share some important features of algebraic…

代数几何 · 数学 2025-03-06 Sergei Kovalenko , Alexander Perepechko , Mikhail Zaidenberg

A complete classifications, up to isomorphism, of two-dimensional associative and diassociative algebras over any basic field are given.

环与代数 · 数学 2023-07-20 I. S. Rakhimov

We associate an square to any two dimensional evolution algebra. This geometric object is uniquely determined, does not depend on the basis and describes the structure and the behaviour of the algebra. We determine the identities of degrees…

The present paper is devoted to the description of finite-dimensional semisimple Leibniz algebras over complex numbers, their derivations and automorphisms.

环与代数 · 数学 2017-08-29 Shavkat Ayupov , Karimbergen Kudaybergenov , Bakhrom Omirov , Kaiming Zhao

We discuss the homological algebra of representation theory of finite dimensional algebras and finite groups. We present various methods for the construction and the study of equivalences of derived categories: local group theory, geometry…

表示论 · 数学 2007-05-23 Raphael Rouquier

We take a categorical approach to describe ternary derivations and ternary automorphisms of triangular algebras. New classes of automorphisms and derivations of triangular algebras are also introduced and studied.

In this paper we look at the automorphisms of the multiplicative group of finite nearfields. We find partial results for the actual automorphism groups. We find counting techniques for the size of all finite nearfields. We then show that…

环与代数 · 数学 2016-02-02 Tim Boykett , Karin-Therese Howell

We give a survey of recent results related to the problem of characterizing finite-dimensional division algebras by the set of isomorphism classes of their maximal subfields. We also discuss various generalizations of this problem and some…

环与代数 · 数学 2015-06-11 Vladimir I. Chernousov , Andrei S. Rapinchuk , Igor A. Rapinchuk

This paper addresses the classification problem of associative algebras over arbitrary base fields. We present a list of three-dimensional associative algebras with canonical representatives of the isomorphism classes for fields of…

环与代数 · 数学 2026-03-09 U. Bekbaev , I. Rakhimov

We provide a complete classification of three-dimensional associative algebras over the real and complex number fields based on a complete elementary proof. We list up all the multiplication tables of the algebras up to isomorphism. We…

环与代数 · 数学 2019-03-06 Yuji Kobayashi , Kiyoshi Shirayanagi , Sin-Ei Takahasi , Makoto Tsukada

We develop a method to give presentations of quantized function algebras of complex reductive groups. In particular, we give presentations of quantized function algebras of automorphism groups of finite dimensional simple complex Lie…

量子代数 · 数学 2021-06-09 Pavel Etingof , Sergey Neshveyev
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