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This note aims to investigate the tensor product of two given Hilbert quasi *-algebras and its properties. The construction proposed in this note turns out to be again a Hilbert quasi *-algebra, thus interesting representability properties…

Functional Analysis · Mathematics 2020-02-20 Maria Stella Adamo

Several structural properties of a universal algebra can be seen from the higher commutators of its congruences. Even on a finite algebra, the sequence of higher commutator operations is an infinite object. In the present paper, we exhibit…

Rings and Algebras · Mathematics 2022-03-18 Erhard Aichinger , Nebojša Mudrinski

In this paper we define a quantum version of the ``fusion'' tensor product of two representations of an affine Kac-Moody algebra.It is replaced by what we call fusion action of the category of finite-dimensional representations of quantum…

q-alg · Mathematics 2008-02-03 D. Kazhdan , Y. Soibelman

In this article, we give two examples of finitely presented quadratic algebras (algebras presented by quadratic relations) of intermediate growth.

Rings and Algebras · Mathematics 2015-06-04 Dilber Kocak

We introduce thread quivers as an (infinite) generalization of quivers, and show that every k-linear (k algebraically closed) hereditary category with Serre duality and enough projectives is equivalent to the category of finitely presented…

Representation Theory · Mathematics 2013-07-04 Carl Fredrik Berg , Adam-Christiaan van Roosmalen

We give a graded dimension formula described in terms of combinatorics of Young diagrams and a simple criterion to determine the representation type for the finite quiver Hecke algebras of type $C_{\ell}^{(1)}$.

Representation Theory · Mathematics 2014-06-27 Susumu Ariki , Euiyong Park

We study maximal subalgebras of an arbitrary finite dimensional algebra over a field, and obtain full classification/description results of such algebras. This is done by first obtaining a complete classification in the semisimple case, and…

Rings and Algebras · Mathematics 2017-08-31 Miodrag Iovanov , Alexander Sistko

We classify the irreducible finite-dimensional representations of the twisted quantum affine algebras.

q-alg · Mathematics 2008-02-03 Vyjayanthi Chari , Andrew Pressley

We classify simple representations of Khovanov-Lauda-Rouquier algebras in finite type. The classification is in terms of a standard family of representations that is shown to yield the dual PBW basis in the Grothendieck group. Finally, we…

Representation Theory · Mathematics 2013-07-19 Peter J. McNamara

The concept of a crossed tensor product of algebras is studied from a few points of views. Some related constructions are considered. Crossed enveloping algebras and their representations are discussed. Applications to the noncommutative…

Mathematical Physics · Physics 2009-10-31 A. Borowiec , W. Marcinek

For finitary regular monads T on locally finitely presentable categories we characterize the finitely presentable objects in the category of T-algebras in the style known from general algebra: they are precisely the algebras presentable by…

Category Theory · Mathematics 2019-09-06 Jiří Adámek , Stefan Milius , Lurdes Sousa , Thorsten Wißmann

In this paper, we show that the class of representable residuated semigroups has the finite representation property. That is, every finite representable residuated semigroup is isomorphic to some algebra over a finite base. This result…

Logic · Mathematics 2020-12-11 Daniel Rogozin

We determine derived representation type of complete finitely generated local and two-point algebras over an algebraically closed field.

Representation Theory · Mathematics 2008-12-31 Viktor Bekkert , Yuriy Drozd , Vyacheslav Futorny

Exact indecomposable module categories over the tensor category of representations of Hopf algebras that are liftings of quantum linear spaces are classified.

Quantum Algebra · Mathematics 2014-02-26 Martin Mombelli

A finite W-algebra is an associative algebra constructed from a semisimple Lie algebra and its nilpotent element. In this survey we review recent developments in the representation theory of W-algebras. We emphasize various interactions…

Representation Theory · Mathematics 2010-03-31 Ivan Losev

In this short paper, we study $n$-representation-finite algebras from the viewpoint of the fractionally Calabi-Yau property. We shall show that all $n$-representation-finite algebras are twisted fractionally Calabi-Yau. We also show that…

Representation Theory · Mathematics 2014-02-26 Martin Herschend , Osamu Iyama

We define a higher level version of the affine Hecke algebra and prove that, after completion, this algebra is isomorphic to a completion of Webster's tensor product algebra of type A. We then introduce a higher level version of the affine…

Representation Theory · Mathematics 2020-04-15 Ruslan Maksimau , Catharina Stroppel

The classical construction of representations of quivers enables us to consider linear maps between several vector spaces. The mixed representations of quivers helps us to work with linear maps as well as bilinear forms on several vector…

Rings and Algebras · Mathematics 2016-12-23 Artem Lopatin

We give a presentation of the centralizer algebras for tensor products of spinor representations of quantum groups via generators and relations. In the even-dimensional case, this can be described in terms of non-standard q-deformations of…

Quantum Algebra · Mathematics 2012-08-14 Hans Wenzl

This paper presents analogous results of Hua [7][8] on numbers of representations of quivers over finite fields which respect nilpotent relations under certain assumptions. A closed formula which counts isomorphism classes of absolutely…

Representation Theory · Mathematics 2021-05-06 Bangming Deng , Jiuzhao Hua