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Algorithms for embedding certain types of nilpotent subalgebras in maximal subalgebras of the same type are developed, using methods of real algebraic groups. These algorithms are applied to determine non-conjugate subalgebras of the…

Representation Theory · Mathematics 2017-05-09 Sajid Ali , Hassan Azad , Indranil Biswas , Ryad Ghanam , Tahir Mustafa

The Lie-Amaldi classification of finite dimensional nilpotent algebras of vector fields is refined, using the rank of the center of the Lie algebra as an invariant.

Representation Theory · Mathematics 2026-05-20 Hassan Azad , Indranil Biswas , Ryad Ghanam

We give a geometric classification of complex $n$-dimensional $2$-step nilpotent (all, commutative and anticommutative) algebras. Namely, has been found the number of irreducible components and their dimensions. As a corollary, we have a…

Rings and Algebras · Mathematics 2021-11-02 Mikhail Ignatyev , Ivan Kaygorodov , Yury Popov

We give an algebraic classification of complex $5$-dimensional one-generated nilpotent terminal algebras.

Rings and Algebras · Mathematics 2020-08-05 Ivan Kaygorodov , Abror Khudoyberdiyev , Aloberdi Sattarov

This paper is a contribution to the development of the non associative algebras theory. More precisely, this work deals with the classification of the complex 4-dimensional Leibniz algebras. Note that the classification of 4-dimensional…

Rings and Algebras · Mathematics 2013-02-01 Elisa M. Canete , Abror Kh. Khudoyberdiyev

We establish a computable version of Gelfand Duality. Under this computable duality, computably compact presentations of metrizable spaces uniformly effectively correspond to computable presentations of unital commutative $C^*$ algebras.

We describe and prove correctness of two practical algorithms for finding indecomposable summands of finitely generated modules over a finitely generated k-algebra R. The first algorithm applies in the (multi)graded case, which enables the…

Commutative Algebra · Mathematics 2026-05-28 Devlin Mallory , Mahrud Sayrafi

In this paper we compute the cohomology of certain special cases of nilpotent algebras in a complex \zt-graded vector space of arbitrary finite dimension. These algebras are generalizations of the only two nontrivial complex 2-dimensional…

Rings and Algebras · Mathematics 2010-05-24 Christopher DeCleene , Michael Penkava , Mitch Phillipson

We present a new algorithm to decide isomorphism between finite graded algebras. For a broad class of nilpotent Lie algebras, we demonstrate that it runs in time polynomial in the order of the input algebras. We introduce heuristics that…

Rings and Algebras · Mathematics 2019-05-06 Peter A. Brooksbank , E. A. O'Brien , James B. Wilson

Given any finite quiver, we consider a complete flag of vector spaces over each vertex. Consider the unipotent invariant subalgebra of the coordinate ring of the filtered quiver representation subspace. We prove that the dimension of the…

Algebraic Geometry · Mathematics 2016-09-27 Mee Seong Im , Lisa M. Jones

We adopt the $p$-group generation algorithm to classify small-dimensional nilpotent Lie algebras over small fields. Using an implementation of this algorithm, we list the nilpotent Lie algebras of dimension at most~9 over $\F_2$ and those…

Rings and Algebras · Mathematics 2016-09-07 Csaba Schneider

Nilpotent Leibniz algebras with isomorphic maximal subalgebras are considered. The algebras are classified for coclass zero, one, and two. The results are field dependent.

Rings and Algebras · Mathematics 2022-05-27 Lindsey Farris

According to Kirillov's theory, the construction of a unitary irreducible representation of a nilpotent Lie group requires a precise computation of some polarizing subalgebra subordinated to a linear functional in the linear dual of the…

Representation Theory · Mathematics 2013-12-20 Vignon Oussa

The Clifford algebra of a n-dimensional Euclidean vector space provides a general language comprising vectors, complex numbers, quaternions, Grassman algebra, Pauli and Dirac matrices. In this work, we present an introduction to the main…

Mathematical Physics · Physics 2018-01-23 G. Aragon-Camarasa , G. Aragon-Gonzalez , J. L. Aragon , M. A. Rodriguez-Andrade

Throughout the current paper, we extend the study of Zinbiel algebras to Zinbiel superalgebras. In particular, we show that all the Zinbiel superalgebras over an arbitrary field are nilpotent in the same way as occurs for Zinbiel algebras.…

Rings and Algebras · Mathematics 2023-06-02 Luisa María Camacho , Amir Fernández Ouaridi , Ivan Kaygorodov , Rosa Navarro

By combining well-known techniques from both noncommutative algebra and computational commutative algebra, we observe that an algorithmic approach can be applied to the study of irreducible representations of finitely presented algebras. In…

Rings and Algebras · Mathematics 2007-05-23 Edward S. Letzter

The method reducing the solution of the Schroedinger equation for several types of power potentials to the solution of the eigenvalue problem for the infinite system of algebraic equations is developed. The finite truncation of this system…

High Energy Physics - Phenomenology · Physics 2014-11-17 R. N. Faustov , V. O. Galkin , A. V. Tatarintsev , A. S. Vshivtsev

Recently, by A. Elduque and A. Labra a new technique and a type of an evolution algebra are introduced. Several nilpotent evolution algebras defined in terms of bilinear forms and symmetric endomorphisms are constructed. The technique then…

Rings and Algebras · Mathematics 2017-11-15 B. A. Omirov , U. A. Rozikov , M. V. Velasco

This paper is devoted to the complete algebraic and geometric classification of complex $4$-dimensional nilpotent weakly associative, complex $4$-dimensional symmetric Leibniz algebras, and complex $5$-dimensional nilpotent symmetric…

Rings and Algebras · Mathematics 2022-05-12 María Alejandra Alvarez , Ivan Kaygorodov

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