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We characterize those modular group algebras FG whose group of unitary units is locally nilpotent under the classical involution of FG.

Group Theory · Mathematics 2018-01-17 Victor A. Bovdi

The paper is devoted to the investigation of finite dimensional commutative nilpotent (associative) algebras N over an arbitrary base field of characteristic zero. Due to the lack of a general structure theory for algebras of this type (as…

Commutative Algebra · Mathematics 2011-08-08 Gregor Fels , Wilhelm Kaup

We discuss the noncommutative generalizations of polynomial algebras which after appropriate completions can be used as coordinate algebras in various noncommutative settings, (noncommutative differential geometry, noncommutative algebraic…

Quantum Algebra · Mathematics 2010-03-19 Michel Dubois-Violette

This paper aims to introduce the concept of nilpotency and capability in multiplicative Lie algebras. Also, we see the existence of covers of a multiplicative Lie algebra and thoroughly examine their relationships with capable and perfect…

Group Theory · Mathematics 2023-05-30 Amit Kumar , Mani Shankar Pandey , Sumit Kumar Upadhyay

We classify nilpotent associative algebras of dimensions up to 4 over any field. This is done by constructing the nilpotent associative algebras as central extensions of algebras of smaller dimension, analogous to methods known for…

Rings and Algebras · Mathematics 2017-05-23 Willem A. de Graaf

We classify real 6-dimensional nilpotent Lie algebras for which the corresponding Lie group has a left-invariant complex structure, and estimate the dimensions of moduli spaces of such structures.

Differential Geometry · Mathematics 2007-05-23 Simon Salamon

We classify Morita equivalence classes of indecomposable self-injective cellular algebras which have polynomial growth representation type, assuming that the base field has an odd characteristic. This assumption on the characteristic is for…

Representation Theory · Mathematics 2017-07-03 Susumu Ariki , Ryoichi Kase , Kengo Miyamoto , Kentaro Wada

We define ''convergence'' for noncommutative power series and construct two topologies on the algebra of power series, convergent with respect to a positive radius. We indicate all finite dimensional continuous representations of this…

Quantum Algebra · Mathematics 2007-05-23 Frank Schuhmacher

We prove that a finitely generated Lie algebra $L$ such that (i) every commutator in generators is ad-nilpotent, and (ii) $ L$ satisfies a polynomial identity, is nilpotent. As a corollary we get that a finitely generated residually-$p$…

Rings and Algebras · Mathematics 2017-08-07 Efim Zelmanov

We introduce a family of extremal polynomials associated with the prolongation of a stratified nilpotent Lie algebra. These polynomials are related to a new algebraic characterization of abnormal subriemannian geodesics in stratified…

Differential Geometry · Mathematics 2013-07-22 Enrico Le Donne , Gian Paolo Leonardi , Roberto Monti , Davide Vittone

We construct large families of characteristically nilpotent Lie algebras by considering deformations of the Lie algebra g_{m,m-1}^{4} of type Q_{n},and which arises as a central extension fo the filiform Lie algebra L_{n}. By studying the…

Rings and Algebras · Mathematics 2007-05-23 Jose Maria Ancochea-Bermudez , Otto Rutwig Campoamor-Stursberg

Let V be a variety of not necessarily associative algebras, and A an inverse limit of nilpotent algebras A_i\in V, such that some finitely generated subalgebra S \subseteq A is dense in A under the inverse limit of the discrete topologies…

Rings and Algebras · Mathematics 2021-10-15 George M. Bergman

For sufficiently high dimensions, the naturally graded nonsplit nilpotent Lie algebras with linear characteristic sequence are classified.

Rings and Algebras · Mathematics 2007-05-23 Jose Maria Ancochea , Rutwig Campoamor

We show that sheet closures appear as associated varieties of affine vertex algebras. Further, we give new examples of non-admissible affine vertex algebras whose associated variety is contained in the nilpotent cone. We also prove some…

Representation Theory · Mathematics 2019-03-14 Tomoyuki Arakawa , Anne Moreau

We describe differential invariants of infinite-dimensional algebras being equivalence algebras of some classes of PDE and study structure of these algebras.

Mathematical Physics · Physics 2009-10-13 Irina Yehorchenko

We classify the $4$-dimensional nilpotent bicommutative algebras over $\mathbb C$ from both algebraic and geometric approaches.

Rings and Algebras · Mathematics 2020-04-03 Ivan Kaygorodov , María Pilar Paez Guillán , Vasily Voronin

We discuss multi-graded nilpotent tuples of multi-graded vector spaces which are a generalization of graded nilpotent pairs. The multi-grading yields a natural notion of a shape of such tuple and our main interest is to answer the question…

Representation Theory · Mathematics 2018-12-05 Magdalena Boos

We investigate from an algebraic and topological point of view the minimal prime spectrum of a universal algebra, considering the prime congruences w.r.t. the term condition commutator. Then we use the topological structure of the minimal…

Rings and Algebras · Mathematics 2024-09-04 George Georgescu , Leonard Kwuida , Claudia Mureşan

In this paper we introduce the notion of pure non-characteristically nilpotent Lie algebra and under a condition we prove that a complex maximal extension of a finite-dimensional pure non-characteristically nilpotent Lie algebra is…

Rings and Algebras · Mathematics 2022-07-21 K. K. Abdurasulov , B. A. Omirov

We give a complete description of degenerations of complex $5$-dimensional nilpotent associative commutative algebras.

Rings and Algebras · Mathematics 2020-04-03 Ivan Kaygorodov , Samuel A. Lopes , Yury Popov