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In this paper, we determine the derivation algebra and automorphism group of the twisted N=2 superconformal algebra. Then we generalize the relative results to the generalized twisted N=2 superconformal algebra in the final section.

Rings and Algebras · Mathematics 2015-03-13 Huanxia Fa

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

Rings and Algebras · Mathematics 2018-12-10 H. Ahmed , U. Bekbaev , I. Rakhimov

In this paper, the derivation algebras and automorphism groups of a class of deformative super $W$-algebras $W_{\lambda}(2,2)$ are determined.

Rings and Algebras · Mathematics 2017-05-29 Hao Wang , Huanxia Fa , Junbo Li

In this paper, we first discuss the structure of the Ramond N=2 superconformal algebras. Then we also classify the modules of the intermediate series over Ramond N=2 superconformal algebra.

Quantum Algebra · Mathematics 2009-11-11 Jiayuan Fu , Qifen Jiang , Yucai Su

We introduce the formalism of differential conformal superalgebras, which we show leads to the "correct" automorphism group functor and accompanying descent theory in the conformal setting. As an application, we classify forms of N=2 and…

Rings and Algebras · Mathematics 2008-05-29 Victor Kac , Michael Lau , Arturo Pianzola

The derivation algebras, automorphism groups and second cohomology groups of the generalized loop Schr\"{o}dinger-Virasoro algebras are completely determined in this paper.

Quantum Algebra · Mathematics 2015-09-08 Haibo Chen , Guangzhe Fan , Jianzhi Han , Yucai Su

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

Rings and Algebras · Mathematics 2024-11-19 Sh. Eshmirzayev , U. Bekbaev

We investigate the general structure of the automorphism group and the Lie algebra of derivations of a finitely generated vertex operator algebra. The automorphism group is isomorphic to an algebraic group. Under natural assumptions, the…

Quantum Algebra · Mathematics 2007-05-23 C. Dong , R. L. Griess

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.

Rings and Algebras · Mathematics 2017-11-22 H. Ahmed , U. Bekbaev , I. Rakhimov

This paper focuses on the derivations and automorphism groups of certain finite-dimensional associative algebras over the field of complex numbers. Using classification results for algebras of dimensions two, three, and four, along with…

Rings and Algebras · Mathematics 2025-01-06 Ahmed Zahari Abdou , Bouzid Mosbahi

In this article, we study the derivations of group algebras of some important groups, namely, dihedral ($D_{2n}$), Dicyclic ($T_{4n}$) and Semi-dihedral ($SD_{8n}$). First, we explicitly classify all inner derivations of a group algebra…

Rings and Algebras · Mathematics 2024-10-06 Praveen Manju , Rajendra Kumar Sharma

We study the automorphism group of an idempotent evolution algebra, show that any finite group can be the automorphism group of an evolution algebra, and describe certain evolution algebras with given automorphism groups. In particular, we…

Rings and Algebras · Mathematics 2022-02-15 Songpon Sriwongsa , Yi Ming Zou

This paper classifies the derivations of group algebras in terms of the generators and defining relations of the group. If $RG$ is a group ring, where $R$ is commutative and $S$ is a set of generators of $G$ then necessary and sufficient…

Rings and Algebras · Mathematics 2018-12-05 Kieran Hughes , Leo Creedon

In this paper, we compute the automorphism group and derivation algebra of the Hamiltonian Lie algebra $\mathcal{H}_{N}$ and its derived subalgebra $\mathcal{H}_{N}'$, where $N$ is an even positive integer. The automorphism groups are shown…

Representation Theory · Mathematics 2026-04-30 Pradeep Bisht , Suman Rani , Santanu Tantubay

We are interested in overgroups of the automorphism group of the Rado graph. One class of such overgroups is completely understood; this is the class of reducts. In this article we tie recent work on various other natural overgroups, in…

Combinatorics · Mathematics 2012-05-17 Peter Cameron , Claude Laflamme , Maurice Pouzet , Sam Tarzi , Robert Woodrow

The group of automorphisms of the Kac Jordan superalgebra is described, and used to classify the maximal subalgebras.

Rings and Algebras · Mathematics 2007-05-23 Alberto Elduque , Jesus Laliena , Sara Sacristan

We establish a correspondence between automorphisms and derivations on certain algebras of generalised power series. In particular, we describe a Lie algebra of derivations on a field $k(\!(G)\!)$ of generalised power series, exploiting our…

Rings and Algebras · Mathematics 2025-09-23 Vincent Bagayoko , Lothar Sebastian Krapp , Salma Kuhlmann , Daniel Panazzolo , Michele Serra

In this article, we determine the derivation algebra and the automorphism group of the twisted Schr\"{o}dinger-Virasoro algebra.

Rings and Algebras · Mathematics 2008-01-16 Junbo Li , Yucai Su

The underlying algebra for a noncommutative geometry is taken to be a matrix algebra, and the set of derivatives the adjoint of a subset of traceless matrices. This is sufficient to calculate the dual 1-forms, and show that the space of…

q-alg · Mathematics 2009-10-30 Jonathan Gratus

In this paper, we study group equations with occurrences of automorphisms. We describe equational domains in this class of equations. Moreover, we solve a number of open problem posed in universal algebraic geometry.

Algebraic Geometry · Mathematics 2020-03-26 Artem N. Shevlyakov
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