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This paper studies expansions of bounded distributive lattices equipped with a Galois connection. We introduce GC-frames and canonical frames for these algebras. The complex algebras of GC-frames are defined in terms of rough set…

Rings and Algebras · Mathematics 2013-12-24 Wojciech Dzik , Jouni Järvinen , Michiro Kondo

We study a new class of infinite dimensional Lie algebras, which has important applications to the theory of integrable equations. The construction of these algebras is very similar to the one for automorphic functions and this motivates…

Mathematical Physics · Physics 2009-11-10 S. Lombardo , A. V. Mikhailov

A different proof to a known criterion of derived equivalence implying birationality is given. Derived equivalent smooth projective curves over an algebraically closed field are proved to be isomorphic. A different proof of derived…

Algebraic Geometry · Mathematics 2011-08-10 Yu-Han Liu

All Darboux integrable difference equations on the quad-graph are described in the case of the equations that possess autonomous first-order integrals in one of the characteristics. A generalization of the discrete Liouville equation is…

Exactly Solvable and Integrable Systems · Physics 2017-12-04 S. Ya. Startsev

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

We characterize vertex algebras (in a suitable sense) as algebras over a certain graded co-operad. We also discuss some examples and categorical implications of this characterization.

Rings and Algebras · Mathematics 2010-06-02 Ruthi Hortsch , Igor Kriz , Ales Pultr

This paper studies how the theory of derived algebras (in the sense of Bhatt-Mathew and Raksit) interacts with formal derived geometry, specifically the formal derived stacks which show up in the theory of prismatization. As an application…

Algebraic Geometry · Mathematics 2026-03-02 Shubhankar Sahai

In this paper we study derived equivalences for Symplectic reflection algebras. We establish a version of the derived localization theorem between categories of modules over Symplectic reflection algebras and categories of coherent sheaves…

Representation Theory · Mathematics 2020-05-21 Ivan Losev

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

A complete classification of two-dimensional algebras over algebraically closed fields is provided

Rings and Algebras · Mathematics 2018-12-04 H. Ahmed , U. Bekbaev , I. Rakhimov

We consider a natural generalisation of symmetric Nakayama algebras, namely, symmetric special biserial algebras with at most one non-uniserial indecomposable projective module. We describe the basic algebras explicitly by quiver and…

Representation Theory · Mathematics 2013-10-14 Nicole Snashall , Rachel Taillefer

In this paper, the so-called differential graded (DG for short) Poisson Hopf algebra is introduced, which can be considered as a natural extension of Poisson Hopf algebras in the differential graded setting. The structures on the universal…

Rings and Algebras · Mathematics 2017-04-06 Mengtian Guo , Xianguo Hu , Jiafeng Lu , Xingting Wang

We introduce a notion of inertial equivalence for integral $\ell$-adic representation of the Galois group of a global field. We show that the collection of continuous, semisimple, pure $\ell$-adic representations of the absolute Galois…

Number Theory · Mathematics 2021-06-10 Plawan Das , C. S. Rajan

The so called generalized down-up algebras are revisited from a viewpoint of Gr\"obner basis theory. Particularly it is shown explicitly that generalized down-up algebras are solvable polynomial algebras (provided $\lambda\omega\ne 0$), and…

Rings and Algebras · Mathematics 2022-01-11 Rabigul Tuniyaz , Gulshadam Yunus

We classify all division algebras that are principal Albert isotopes of a cyclic Galois field extension of degree $n>2$ up to isomorphisms. We achieve a ``tight'' classification when the cyclic Galois field extension is cubic. The…

Rings and Algebras · Mathematics 2025-02-28 Susanne Pumpluen

The main purpose of this paper is to provide explicit computations of the fundamental group of several algebras. For this purpose, given a $k$-algebra $A$, we consider the category of all connected gradings of $A$ by a group $G$ and we…

Rings and Algebras · Mathematics 2018-06-12 Claude Cibils , Maria Julia Redondo , Andrea Solotar

Leavitt path algebras are free algebras subject to relations induced by directed graphs. This paper investigates the ideals of Leavitt path algebras, with an emphasis on the relationship between graph-theoretic properties of a directed…

Rings and Algebras · Mathematics 2025-10-09 Yvan Grinspan , Seth Yoo

One of the central questions of universal algebraic geometry is: when two algebras have the same algebraic geometry? There are various interpretations of the sentence "Two algebras have the same algebraic geometry". One of these is…

General Mathematics · Mathematics 2007-05-23 A. Tsurkov

A classification up to automorphism of the inner ideals of the real finite-dimensional simple Lie algebras is given, jointly with precise descriptions in the case of the exceptional Lie algebras.

Rings and Algebras · Mathematics 2022-02-21 Cristina Draper , Jeroen Meulewaeter

We complete the derived equivalence classification of the gentle two-cycle algebras initiated in earlier papers by Avella-Alaminos and Bobinski-Malicki.

Representation Theory · Mathematics 2015-09-30 Grzegorz Bobinski