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A class of algebras called down-up algebras was introduced by G. Benkart and T. Roby. We classify the finite dimensional simple modules over Noetherian down-up algebras and show that in some cases every finite dimensional module is…

Representation Theory · Mathematics 2007-05-23 Paula A. A. B. Carvalho , Ian M. Musson

The tridiagonal algebra is defined by two generators and two relations, called the tridiagonal relations. Special cases of the tridiagonal algebra include the $q$-Onsager algebra, the positive part of the $q$-deformed enveloping algebra…

Combinatorics · Mathematics 2026-03-25 Paul Terwilliger

The algebra generated by the down and up operators on a differential partially ordered set (poset) encodes essential enumerative and structural properties of the poset. Motivated by the algebras generated by the down and up operators on…

Representation Theory · Mathematics 2016-09-07 Georgia Benkart , Tom Roby

We propose a generalization of non-commutative geometry and gauge theories based on ternary Z_3-graded structures. In the new algebraic structures we define, we leave all products of two entities free, imposing relations on ternary products…

High Energy Physics - Theory · Physics 2009-10-30 Viktor Abramov , Richard Kerner , Bertrand Le Roy

We present a generalization of down-up algebras, originally defined by Benkart and Roby. These quiver down-up algebras arise as quotients of the double of the extended Dynkin quiver of type A. Under a certain non-degeneracy condition, we…

Rings and Algebras · Mathematics 2026-04-10 Jason Gaddis , Dennis Keeler

We define an algebra on two generators which we call the Tridiagonal algebra, and we consider its irreducible modules. The algebra is defined as follows. Let K denote a field, and let $\beta, \gamma, \gamma^*, \varrho, \varrho^*$ denote a…

Quantum Algebra · Mathematics 2007-05-23 Paul Terwilliger

Motivated by the structure of the uniform posets we introduce the notion of an augmented down-up (or ADU) algebra. We discuss how ADU algebras are related to the down-up algebras defined by Benkart and Roby. For each ADU algebra we give two…

Quantum Algebra · Mathematics 2012-06-05 Paul Terwilliger , Chalermpong Worawannotai

This paper establishes a comprehensive algebraic framework linking the Lie algebra $\mathfrak{so}_{3}$ to the Askey--Wilson algebras. First, we provide a manifestly symmetric reformulation of the algebra homomorphism from the universal…

Rings and Algebras · Mathematics 2026-02-04 Hau-Wen Huang

Classification of AS-regular algebras is one of the most important projects in noncommutative algebraic geometry. Recently, Itaba and the first author gave a complete list of defining relations of $3$-dimensional quadratic AS-regular…

Rings and Algebras · Mathematics 2023-09-21 Masaki Matsuno , Yu Saito

Let $\mathbb F$ denote a field, and fix a nonzero $q\in\mathbb F$ such that $q^4\not=1$. The universal Askey-Wilson algebra $\Delta_q$ is the associative $\mathbb F$-algebra defined by generators and relations in the following way. The…

Quantum Algebra · Mathematics 2013-07-16 Paul Terwilliger

A new definition of the elliptic algebra U_{q,p}(g^) associated with an untwisted affine Lie algebra g^ is given as a topological algebra over the ring of formal power series in p. We also introduce a quantum dynamical analogue of…

Quantum Algebra · Mathematics 2014-07-15 Rasha M. Farghly , Hitoshi Konno , Kazuyuki Oshima

A generalization of down-up algebras was introduced by Cassidy and Shelton (J. Algebra 279 (2004), no. 1), the so-called generalized down-up algebras. We describe the automorphism group of conformal Noetherian generalized down-up algebras…

Rings and Algebras · Mathematics 2007-06-25 Paula A. A. B. Carvalho , Samuel A. Lopes

The nonabelian two-dimensional Lie algebra over a field $\mathbb{F}$ has a presentation by generators $A$, $B$ and relation $\left[ A,B\right]=A$, with the universal enveloping algebra having a presentation by generators $A$, $B$ and…

Rings and Algebras · Mathematics 2025-02-25 Rafael Reno S. Cantuba , Mark Anthony C. Merciales

We show that each irreducible tensor representation of weight 2 of the rotation group of three-dimensional space in the space of rank 3 covariant tensors gives rise to an associative algebra with unity. We find the algebraic relations that…

High Energy Physics - Theory · Physics 2020-06-11 Viktor Abramov

There exists two types of nonassociative algebras whose associator satisfies a symmetric relation associated with a 1-dimensional invariant vector space with respect to the natural action of the symmetric group on three elements. The first…

Rings and Algebras · Mathematics 2009-10-06 Elisabeth Remm , Michel Goze

In the first part we present the Weyl algebra and our results concerning its finite-dimensional Lie subalgebras. The second part is devoted to a more exotic algebraic structure, the Lie algebra of order 3. We set the basis of a theory of…

High Energy Physics - Theory · Physics 2007-05-23 Adrian Tanasa

The symmetric homology of a unital algebra $A$ over a commutative ground ring $k$ is defined using derived functors and the symmetric bar construction of Fiedorowicz. For a group ring $A = k[\Gamma]$, the symmetric homology is related to…

Algebraic Topology · Mathematics 2019-04-22 Shaun V. Ault

In the present article we investigate the possibility of combining the usual Grassmann algebras with their ternary Z_3-graded counterpart, thus creating a more general algebra with coexisting quadratic and cubic constitutive relations. We…

Rings and Algebras · Mathematics 2015-12-09 V. Abramov , R. Kerner , O. Liivapuu

We present a detailed computation of the cyclic and the Hochschild homology and cohomology of generic and 3-Calabi-Yau homogeneous down-up algebras. This family was defined by Benkart and Roby in their study of differential posets. Our…

K-Theory and Homology · Mathematics 2016-10-03 Sergio Chouhy , Estanislao Herscovich , Andrea Solotar

We investigate certain $Z_3$-graded associative algebras with cubic $Z_3$-invariant constitutive relations. The invariant forms on finite algebras of this type are given in the low dimensional cases with two or three generators. We show how…

High Energy Physics - Theory · Physics 2015-06-03 Richard Kerner
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