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In this paper we describe central extensions (up to isomorphism) of all complex null-filiform and filiform Zinbiel algebras. It is proven that every non-split central extension of an $n$-dimensional null-filiform Zinbiel algebra is…

Rings and Algebras · Mathematics 2020-09-03 Luisa M. Camacho , Iqboljon Karimjanov , Ivan Kaygorodov , Abror Khudoyberdiyev

In this paper, we realize the algebra of $\mathbb{Z}_2$-relations, signed partition algebras and partition algebras as tabular algebras and prove the cellularity of these algebras using the method of \cite{GM1}. Using the results of Graham…

Representation Theory · Mathematics 2015-06-10 N. Karimilla Bi

A compatible $L_\infty$-algebra is a graded vector space together with two compatible $L_\infty$-algebra structures on it. Given a graded vector space, we construct a graded Lie algebra whose Maurer-Cartan elements are precisely compatible…

Rings and Algebras · Mathematics 2021-11-29 Apurba Das

The representation and the cohomology theory of associative 2-algebras are developed. We study the deformations and abelian extensions of associative 2-algebras in details.

Rings and Algebras · Mathematics 2023-12-29 Tao Zhang

In this article we study extensions of Z_2-graded L_infinity algebras on a vector space of two even and one odd dimension. In particular, we determine all extensions of a super Lie algebra as an L_infinity algebra. Our convention on the…

Quantum Algebra · Mathematics 2007-05-23 Alice Fialowski , Michael Penkava

We build, using the notion of zinbiel algebra, some commutative subalgebras $C_{u,v}$ inside an algebra of formal iterated integrals. There is a quotient map from this algebra of formal iterated integrals to the algebra of motivic multiple…

Number Theory · Mathematics 2021-09-02 Frédéric Chapoton

We study thick subcategories of the category of 2-term complexes of projective modules over an associative algebra. We show that those thick subcategories that have enough injectives are in explicit bijection with 2-term silting complexes…

Representation Theory · Mathematics 2023-08-23 Monica Garcia

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

Rings and Algebras · Mathematics 2023-07-20 I. S. Rakhimov

Using only the combinatorics of its defining ribbon graph, we classify the two-term tilting complexes, as well as their indecomposable summands, of a Brauer graph algebra. As an application, we determine precisely the class of Brauer graph…

Representation Theory · Mathematics 2018-01-08 Takahide Adachi , Takuma Aihara , Aaron Chan

In this article, we introduce a new cohomology theory associated to a Lie 2-algebras. This cohomology theory is shown to extend the classical cohomology theory of Lie algebras; in particular, we show that the second cohomology group…

Category Theory · Mathematics 2022-08-25 Camilo Angulo

We define an equivalence of categories, quite similar to the classical Cartier-Milnor-Moore-Quillen theorem, between the category of connected dendriform bialgebras and the category of brace algebras. This equivalence is given by the…

Quantum Algebra · Mathematics 2007-05-23 Frederic Chapoton

Koszul algebras have arisen in many contexts; algebraic geometry, combinatorics, Lie algebras, non-commutative geometry and topology. The aim of this paper and several sequel papers is to show that for any finite dimensional algebra there…

Category Theory · Mathematics 2014-12-17 Roberto Martinez-Villa , Øyvind Solberg

We show that every two-term tilting complex over an Artin algebra has a tilting module over a certain factor algebra as a homology group. Also, we determine the endomorphism algebra of such a homology group, which is given as a certain…

Representation Theory · Mathematics 2011-07-01 Hiroki Abe

We show that for fields that are of characteristic 0 or algebraically closed of characteristic greater than 5, that certain classes of Leibniz algebras are 2-recognizeable. These classes are solvable, strongly solvable and super solvable.…

Rings and Algebras · Mathematics 2015-04-20 Tiffany Burch , Meredith Harris , Allison McAlister , Elyse Rogers , Ernie Stitzinger , S. McKay Sullivan

We classify strongly homotopy Lie algebras - also called L-infinity algebras - of one even and two odd dimensions, which are related to $2|1$-dimensional $Z_2$-graded Lie algebras. What makes this case interesting is that there are many…

Quantum Algebra · Mathematics 2007-05-23 Alice Fialowski , Michael Penkava

We start with definitions of the general notions of the theory of $\Bbb Z_{2}$-graded algebras. Then we consider theory of inductive families of $\Bbb Z_{2}$-graded semisimple finite-dimensional algebras and its representations in the…

Representation Theory · Mathematics 2008-01-17 A. M. Vershik , A. N. Sergeev

The deformation bicomplex of a module-algebra over a bialgebra is constructed. It is then applied to study algebraic deformations in which both the module structure and the algebra structure are deformed. The cases of module-coalgebras,…

Algebraic Topology · Mathematics 2008-12-07 Donald Yau

In this paper, we study Lie 2-bialgebras, with special attention to coboundary ones, with the help of the cohomology theory of $L_\infty$-algebras with coefficients in $L_\infty$-modules. We construct examples of strict Lie 2-bialgebras…

Mathematical Physics · Physics 2013-05-03 Chengming Bai , Yunhe Sheng , Chenchang Zhu

We apply the notion of 2-extensions of algebras to the deformation theory of algebras. After standard results on butterflies between 2-extensions, we use this (2, 0)-category to give three perspectives on the deformation theory of algebras.…

Algebraic Geometry · Mathematics 2022-04-27 Leo Herr

Using the algebraic classification of all $2$-dimensional algebras, we give the algebraic classification of all $2$-dimensional rigid, conservative and terminal algebras over an algebraically closed field of characteristic 0. We have the…

Rings and Algebras · Mathematics 2018-10-04 Antonio Jesús Calderón , Amir Fernández Ouaridi , Ivan Kaygorodov