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Related papers: Weighted Leavitt path algebras -- an overview

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Any finite dimensional semisimple algebra A over a field K is isomorphic to a direct sum of finite dimensional full matrix rings over suitable division rings. In this paper we will consider the special case where all division rings are…

Rings and Algebras · Mathematics 2020-12-29 Ayten Koç , Songül Esin , Ismail Güloğlu , Müge Kanuni , Ayten Koc , Songul Esin , Ismail Guloglu , Muge Kanuni

In this paper we study the graded version of Naimark's problem for Leavitt path algebras considering them as $\mathbb{Z}$-graded algebras. Several characterizations are obtained of a Leavitt path algebra $L$ of an arbitrary graph $E$ over a…

Rings and Algebras · Mathematics 2025-06-11 Kulumani M. Rangaswamy , Ashish K Srivastava

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

We introduce higher-rank analogues of the Leavitt path algebras, which we call the Kumjian-Pask algebras. We prove graded and Cuntz-Krieger uniqueness theorems for these algebras, and analyze their ideal structure.

Rings and Algebras · Mathematics 2011-06-23 Gonzalo Aranda Pino , John Clark , Astrid an Huef , Iain Raeburn

Given a directed graph E we describe a method for constructing a Leavitt path algebra $L_R(E)$ whose coefficients are in a commutative unital ring R. We prove versions of the Graded Uniqueness Theorem and Cuntz-Krieger Uniqueness Theorem…

Operator Algebras · Mathematics 2010-04-05 Mark Tomforde

In sharp contrast to the Abrams-Rangaswamy Theorem that the only von Neumann regular Leavitt path algebras are exactly those associated to acyclic graphs, here we prove that the Leavitt path algebra of any arbitrary graph is a graded von…

Rings and Algebras · Mathematics 2013-05-08 Roozbeh Hazrat

We relate two conjectures which have been raised for classification of Leavitt path algebras. For purely infinite simple unital Leavitt path algebras, it is conjectured that K_0 classifies them completely. For arbitrary Leavitt path…

Rings and Algebras · Mathematics 2012-04-17 R. Hazrat

Suppose that $R$ is an associative unital ring and that $E=(E^0,E^1,r,s)$ is a directed graph. Utilizing results from graded ring theory we show, that the associated Leavitt path algebra $L_R(E)$ is simple if and only if $R$ is simple,…

Rings and Algebras · Mathematics 2022-12-02 Patrik Lundström , Johan Öinert

This article is the first of two where we investigate to what extent homotopy invariant, excisive and matrix stable homology theories help one distinguish between the Leavitt path algebras $L(E)$ and $L(F)$ of graphs $E$ and $F$ over a…

K-Theory and Homology · Mathematics 2018-08-07 Guillermo Cortiñas , Diego Montero

We introduce a family of unital associative algebras A which are multiparameter analogues of the Weyl algebras and determine the simple weight modules and the Whittaker modules for them. All these modules can be regarded as spaces of…

Rings and Algebras · Mathematics 2013-06-04 Georgia Benkart

Let $L_K(E)$ be the Leavitt path algebra of a directed graph $E$ over a field $K$. In this paper, we determine $E$ and $K$ for the Lie algebra $\mathbf{K}_{L_K(E)}$ and the Jordan algebra $\mathbf{S}_{L_K(E)}$ arising from $L_K(E)$ with…

Rings and Algebras · Mathematics 2026-02-27 Huynh Viet Khanh , Le Qui Danh

For a postive integer $n$ and a subset $S$ of $\mathbb{Z}_n$, let $\left\langle S\right\rangle =\mathbb{Z}_n$, and $w:S\rightarrow\mathbb{N}$ be a function. The weighted Cayley graph of the cyclic group $\mathbb{Z}_n$ with respect to $S$…

Rings and Algebras · Mathematics 2020-01-01 Mohan. R

Using the E-algebraic systems, various graded irreducible representations of a Leavitt path algebra L of a graph E over a field K are constructed. The concept of a Laurent vertex is introduced and it is shown that the minimal graded left…

Rings and Algebras · Mathematics 2015-07-23 Roozbeh Hazrat , Kulumani M. Rangaswamy

The Algebraic Kirchberg-Phillips Question for Leavitt path algebras asks whether unital $K$-theory is a complete isomorphism invariant for unital, simple, purely infinite Leavitt path algebras over finite graphs. Most work on this problem…

Rings and Algebras · Mathematics 2024-07-30 Efren Ruiz

In this article, we give a new class of automorphisms of Leavitt path algebras of arbitrary graphs. Consequently, we obtain Anick type automorphisms of these Leavitt path algebras and new irreducible representations of Leavitt algebras of…

Rings and Algebras · Mathematics 2021-03-02 Shigeru Kuroda , Tran Giang Nam

This paper is an attempt to show that, parallel to Elliott's classification of AF $C^*$-algebras by means of $K$-theory, the graded $K_0$-group classifies Leavitt path algebras completely. In this direction, we prove this claim at two…

Rings and Algebras · Mathematics 2011-11-02 R. Hazrat

We introduce a revised notion of gauge action in relation with Leavitt path algebras. This notion is based on group schemes and captures the full information of the grading on the algebra as it is the case of the gauge action of the graph…

For a commutative ring $R$ with unit we show that the Leavitt path algebra $L_R(E)$ of a graph $E$ embeds into $L_{2,R}$ precisely when $E$ is countable. Before proving this result we prove a generalised Cuntz-Krieger Uniqueness Theorem for…

Rings and Algebras · Mathematics 2016-03-14 Nathan Brownlowe , Adam P W Sørensen

Leavitt inverse semigroups of directed finite graphs are related to Leavitt graph algebras of (directed) graphs. Leavitt path algebras of graphs have the natural $\mathbb Z$-grading via the length of paths in graphs. We consider the…

Rings and Algebras · Mathematics 2024-12-13 Huanhuan Li , Zongchao Li , Zhengpan Wang

In this paper, we initiate the study of Leavitt path algebra over Kronecker square of a quiver and show the similarities and contrasts in the properties of Leavitt path algebra over a quiver and its Kronecker square. Furthermore, we discuss…

Rings and Algebras · Mathematics 2026-05-29 Jehan Alarfaj , Dolores Martín Barquero , Ashish K. Srivastava