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Related papers: Triangular Lat-Igusa-Todorov algebras

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In this paper we define (special) GLIT classes and (special) GLIT algebras. We prove that GLIT algebras, which generalise Lat-Igusa-Todorov algebras, satisfy the finitistic dimension conjecture and give several properties and examples. In…

Representation Theory · Mathematics 2023-11-13 Marcelo Lanzilotta , José Vivero

Lat-Igusa-Todorov algebras are a natural generalization of Igusa-Todorov algebras. They are defined using the generalized Igusa-Todorov functions given in \cite{BLMV} and also verify the finitistic dimension conjecture. In this article we…

Representation Theory · Mathematics 2021-05-14 Marcos Barrios , Gustavo Mata

In this paper we study a generalisation of the Igusa-Todorov functions which gives rise to a vast class of algebras satisfying the finitistic dimension conjecture. This class of algebras is called Lat-Igusa-Todorov and includes, among…

Representation Theory · Mathematics 2020-02-20 Diego Bravo , Marcelo Lanzilotta , Octavio Mendoza , José Vivero

In this article, we prove that, under certain conditions, Morita context algebras that arise from Igusa-Todorov (LIT) algebras and have zero bimodule morphisms are also Igusa-Todorov (LIT). For a finite dimensional algebra $A$, we prove…

Representation Theory · Mathematics 2023-07-18 M. Barrios , G. Mata

In two recent papers by the authors, all Lie bialgebra structures on Lie algebras of generalized Witt type are classified. In this paper all Lie bialgebra structures on generalized Virasoro-like algebras are determined. It is proved that…

Algebraic Geometry · Mathematics 2007-05-23 Yuezhu Wu , Guang'ai Song , Yucai Su

The first cohomology group of a generalized loop Virasoro algebra with coefficients in the tensor product of its adjoint module is shown to be trivial. The result is applied to prove that Lie bialgebra structures on generalized loop…

Quantum Algebra · Mathematics 2016-11-25 Henan Wu , Song Wang , Xiaoqing Yue

A triangular limit algebra A is isometrically isomorphic to the tensor algebra of a C*-correspondence if and only if its fundamental relation R(A) is a tree admitting a $Z^+_0$-valued continuous and coherent cocycle. For triangular limit…

Operator Algebras · Mathematics 2017-05-17 Elias Katsoulis , Chris Ramsey

In a paper by Michaelis a class of infinite-dimensional Lie bialgebras containing the Virasoro algebra was presented. This type of Lie bialgebras was classified by Ng and Taft. In this paper, all Lie bialgebra structures on the Lie algebras…

Quantum Algebra · Mathematics 2015-06-26 Guang'ai Song , Yucai Su

The notion of Igusa-Todorov classes is introduced in connection with the finitistic dimension conjecture. As application we consider conditions on special ideals which imply the Igusa-Todorov and other finiteness conditions on modules…

Rings and Algebras · Mathematics 2011-09-29 Jiaqun Wei

A basic finite dimensional algebra over an algebraically closed field $k$ is isomorphic to a quotient of a tensor algebra by an admissible ideal. The category of left modules over the algebra is isomorphic to the category of representations…

Representation Theory · Mathematics 2011-02-08 Carl Fredrik Berg

Let A be a connected hereditary artin algebra. We show that the set of functorially finite torsion classes of A-modules is a lattice if and only if A is either representation-finite (thus a Dynkin algebra) or A has only two simple modules.…

Representation Theory · Mathematics 2014-02-07 Claus Michael Ringel

Suppose a finite group acts on a scheme X and a finite-dimensional Lie algebra g. The corresponding equivariant map algebra is the Lie algebra M of equivariant regular maps from X to g. We classify the irreducible finite-dimensional…

Representation Theory · Mathematics 2012-04-11 Erhard Neher , Alistair Savage , Prasad Senesi

There is a well-known class of algebras called Igusa-Todorov algebras which were introduced in relation to finitistic dimension conjecture. As a generalization of Igusa-Todorov algebras, the new notion of $(m,n)$-Igusa-Todorov algebras…

Representation Theory · Mathematics 2024-10-11 Junling Zheng , Yingying Zhang

Let End(V) denote the ring of all linear transformations of an arbitrary k-vector space V over a field k. We define a subset X of End(V) to be "triangularizable" if V has a well-ordered basis such that X sends each vector in that basis to…

Rings and Algebras · Mathematics 2019-04-01 Zachary Mesyan

Following Mitchell's philosophy, in this paper we define the analogous of the triangular matrix algebra to the context of rings with several objects. Given two additive categories $\mathcal{U}$ and $\mathcal{T}$ and $M\in…

Category Theory · Mathematics 2019-03-12 Alicia León-Galeana , Martín Ortiz-Morales , Valente Santiago Vargas

We generalize the tensor product theory for modules for a vertex operator algebra previously developed in a series of papers by the first two authors to suitable module categories for a ''conformal vertex algebra'' or even more generally,…

Quantum Algebra · Mathematics 2008-07-07 Yi-Zhi Huang , James Lepowsky , Lin Zhang

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

We describe a completely algebraic axiom system for intertwining operators of vertex algebra modules, using algebraic flat connections, thus formulating the concept of a {\em tree algebra}. Using the Riemann-Hilbert correspondence, we…

Quantum Algebra · Mathematics 2011-02-11 Igor Kriz , Yang Xiu

In this paper, we show that there is a pre-Lie algebra structure on the tensor product of a pre-Novikov algebra and a right Novikov dialgebra and the tensor product of a pre-Novikov algebra and a special right Novikov algebra on the vector…

Rings and Algebras · Mathematics 2025-07-02 Yue Li , Yanyong Hong

Triangular Lie algebras are the Lie algebras which can be faithfully represented by triangular matrices of any finite size over the real/complex number field. In the paper invariants ('generalized Casimir operators') are found for three…

Mathematical Physics · Physics 2009-11-13 Vyacheslav Boyko , Jiri Patera , Roman Popovych
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