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Lie antialgebras is a class of supercommutative algebras recently appeared in symplectic geometry. We define the notion of enveloping algebra of a Lie antialgebra and study its properties. We show that every Lie antialgebra is canonically…

Commutative Algebra · Mathematics 2010-07-26 Séverine Leidwanger , Sophie Morier-Genoud

We first quantize the Witt algebra in characteristic 0. Then, we consider the reduction modulo p of our formulas. This gives polynomial deformations of the restricted envelopping algebra of the Witt algebra. By this way, we get new families…

Quantum Algebra · Mathematics 2007-05-23 Cyril Grunspan

We consider algebras over a field K defined by a presentation K <x_1,..., x_n : R >, where $R$ consists of n choose 2 square-free relations of the form x_i x_j = x_k x_l with every monomial x_i x_j, i different from j, appearing in one of…

Rings and Algebras · Mathematics 2007-05-23 T. Gateva-Ivanova , Eric Jespers , Jan Okninski

We introduce a relative tilting theory in abelian categories and show that this work offers a unified framework of different previous notions of tilting, ranging from Auslander-Solberg relative tilting modules on Artin algebras to…

Representation Theory · Mathematics 2023-11-27 Alejandro Argudin Monroy , Octavio Mendoza Hernandez

We introduce a family of quiver Hecke algebras which give a categorification of quantum Borcherds algebra associated to an arbitrary Borcherds-Cartan datum.

Representation Theory · Mathematics 2022-05-19 Bolun Tong , Wan Wu

A Lie algebra is said to be quadratic if it admits a symmetric invariant and non-degenerated bilinear form. Semisimple algebras with the Killing form are examples of these algebras, while orthogonal subspaces provide abelian quadatric…

Rings and Algebras · Mathematics 2023-09-01 Pilar Benito , Jorge Roldán-López

The solution of the Drinfeld equation corresponding to the full set of different carrier subalgebras in sl(3) are explicitly constructed. The obtained Hopf structures are studied. It is demonstrated that the presented twist deformations can…

Quantum Algebra · Mathematics 2009-11-11 P. P. Kulish , V. D. Lyakhovsky , M. E. Samsonov

The quiver Hopf algebras are classified by means of ramification systems with irreducible representations. This leads to the classification of Nichols algebras over group algebras and pointed Hopf algebras of type one.

Quantum Algebra · Mathematics 2013-03-25 Shouchuan Zhang , Hui-Xiang Chen , Yao-Zhong Zhang

We establish the $Q \widetilde{Q}$-systems for the twisted quantum affine algebras that were conjectured in arXiv:1606.05301. We develop the representation theory of Borel subalgebra of twisted quantum affine algebras and we construct their…

Representation Theory · Mathematics 2023-01-18 Keyu Wang

We introduce new partial orders on the sequence positive roots and study the statistics of the poset by using Auslander-Reiten quivers for finite type ADE. Then we can prove that the statistics provide interesting information on the…

Representation Theory · Mathematics 2018-05-14 Se-jin Oh

In order to be able to use methods of Universal Algebra for investigating posets, we assign to every pseudocomplemented poset, to every relatively pseudocomplemented poset and to every sectionally pseudocomplemented poset a certain algebra…

Rings and Algebras · Mathematics 2021-03-24 Ivan Chajda , Helmut Länger

We give several examples of tilting-discrete symmetric algebras; in particular, one explores which algebra has tilting-discrete trivial extension. We provide a counter example of the conjecture stating any {\tau} -tilting finite symmetric…

Representation Theory · Mathematics 2025-11-11 Takuma Aihara

We define a new class of pseudo effect algebras, called kite pseudo effect algebras, which is connected with partially ordered groups not necessarily with strong unit. In such a case, starting even with an Abelian po-group, we can obtain a…

Mathematical Physics · Physics 2015-06-16 Anatolij Dvurečenskij

This paper presents a geometric model of the Auslander-Reiten quiver of a type A quiver together with a stability function for which all indecomposable modules are stable. We also introduce a new Catalan object which we call a maximal…

Representation Theory · Mathematics 2022-10-11 Emily Barnard , Emily Gunawan , Emily Meehan , Ralf Schiffler

We study Auslander correspondence from the viewpoint of higher dimensional Auslander-Reiten theory on maximal orthogonal subcategories. We give homological characterizations of Auslander algebras, especially an answer to a question of M.…

Representation Theory · Mathematics 2010-11-01 Osamu Iyama

This is the third in a series of papers which give an explicit description of the reconstruction algebra as a quiver with relations; these algebras arise naturally as geometric generalizations of preprojective algebras of extended Dynkin…

Rings and Algebras · Mathematics 2009-05-11 M. Wemyss

We use the theory of differential tensor algebras and their modules to produce explicit representations of extended Dynkin quivers.

Representation Theory · Mathematics 2014-12-30 Jesús Arturo Jiménez González

Koszul duality and covering theory are combined to realise the bounded derived category D of an algebra with radical square zero as a certain orbit category of the bounded derived category of finitely presented representations of an…

Representation Theory · Mathematics 2017-10-25 Dong Yang

We define the relative Cuntz-Krieger algebras associated to finitely aligned higher-rank graphs. We prove versions of the gauge-invariant uniqueness theorem and the Cuntz-Krieger uniqueness theorem for relative Cuntz-Krieger algebras.

Operator Algebras · Mathematics 2007-05-23 Aidan Sims

The weighted triangulation algebras associated to triangulation quivers and their socle deformations were recently introduced and studied in [15]-[20] and [2]. These algebras, based on surface triangulations and originated from the theory…

Representation Theory · Mathematics 2025-10-22 Andrzej Skowroński , Adam Skowyrski
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