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A natural counterpart to the Lie-Trotter product formula for norm-continuous one-parameter semigroups is proved, for the class of quasicontractive quantum stochastic operator cocycles whose expectation semigroup is norm continuous. Compared…

Functional Analysis · Mathematics 2018-01-18 J. Martin Lindsay

We consider the relations of generalized commutativity in the algebra of formal series $ M_q (x^i ) $, which conserve a tensor $ I_q $-grading and depend on parameters $ q(i,k) $ . We choose the $ I_q $-preserving version of differential…

High Energy Physics - Theory · Physics 2009-10-22 B. M. Zupnik

We study a mixed tensor product $\mathbf{3}^{\otimes m} \otimes \mathbf{\overline{3}}^{\otimes n}$ of the three-dimensional fundamental representations of the Hopf algebra $U_{q} s\ell(2|1)$, whenever $q$ is not a root of unity. Formulas…

Quantum Algebra · Mathematics 2018-02-27 D. V. Bulgakova , A. M. Kiselev , I. Yu. Tipunin

Given an associative graded algebra equipped with a degree +1 differential we define an A-infinity structure that measures the failure of the differential to be a derivation. This can be seen as a non-commutative analog of generalized…

Quantum Algebra · Mathematics 2013-04-24 Kaj Börjeson

The tensor product of two differential forms of degree $p$ and $q$ is a multilinear form that is alternating in its first $p$ arguments and alternating in its last $q$ arguments. These forms, which are known as double forms or…

Numerical Analysis · Mathematics 2025-05-26 Yakov Berchenko-Kogan , Evan S. Gawlik

In this paper, we study the tensor product of two unitary irreducible representations, as well as the tensor product of a unitary irreducible representation with a finite-dimensional one, and determine the corresponding Clebsch-Gordan…

Mathematical Physics · Physics 2025-07-21 R. Alvarez-Nodarse , A. Arenas-Gomez

Non-abelian tensor product of Hom-Lie algebras is constructed and studied. This tensor product is used to describe universal ($\alpha$-)central extensions of Hom-Lie algebras and to establish a relation between cyclic and Milnor cyclic…

Rings and Algebras · Mathematics 2016-03-30 J. M. Casas , E. Khmaladze , N. Pacheco Rego

We study tensor structures on (Rep G)-module categories defined by actions of a compact quantum group G on unital C*-algebras. We show that having a tensor product which defines the module structure is equivalent to enriching the action of…

Operator Algebras · Mathematics 2021-07-01 Sergey Neshveyev , Makoto Yamashita

We establish a tensor product theorem for slope semistable parabolic $\lambda$-connections over smooth projective varieties in arbitrary characteristic.

Algebraic Geometry · Mathematics 2022-03-11 Mao Sheng , Jianping Wang

We consider two different types of deformations for the linear group $ GL(n)$ which correspond to using of a general diagonal R-matrix. Relations between braided and quantum deformed algebras and their coactions on a quantum plane are…

High Energy Physics - Theory · Physics 2008-02-03 B. M. Zupnik

In this paper, we first show that the irreducible characters of a quotient table algebra modulo a normal closed subset can be viewed as the irreducible characters of the table algebra itself. Furthermore, we define the character products…

Representation Theory · Mathematics 2015-08-26 J. Bagherian , A. Rahnamai Barghi

In the references [HL1]--[HL5] and [H1], a theory of tensor products of modules for a vertex operator algebra is being developed. To use this theory, one first has to verify that the vertex operator algebra satisfies certain conditions. We…

q-alg · Mathematics 2008-02-03 Yi-Zhi Huang

We construct a tensor product on Freyd's universal abelian category attached to an additive tensor category or a tensor quiver and establish a universal property. This is used to give an alternative construction for the tensor product on…

Algebraic Geometry · Mathematics 2020-06-17 Luca Barbieri-Viale , Annette Huber , Mike Prest

We analyze Weyl algebra of quantum angular momentum system and construct qubit subalgebra out of it. We show that the commutant of this qubit subalgebra is isomorphic to the original algebra and prove the tensor product structure between…

Quantum Physics · Physics 2014-12-04 Jun Suzuki

Let $R$ be a commutative Noetherian local ring. We study tensor products involving a finitely generated $R$-module $M$ through the natural action of its endomorphism ring. In particular, we study torsion properties of self tensor products…

Commutative Algebra · Mathematics 2025-05-26 Justin Lyle

We undertake a study of transposed \delta-Poisson (super)algebra structures on the Virasoro-like algebra and its Kantor Lie-double -- the latter being constructed via Kantor's procedure. This work leads to the finding that, whereas…

Rings and Algebras · Mathematics 2026-02-06 Jie Lin , Chengyu Liu , Jingjing Jiang

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 2007-05-23 Yi-Zhi Huang , James Lepowsky , Lin Zhang

The question of whether a split tensor product of quaternion algebras with involution over a field of characteristic two can be expressed as a tensor product of split quaternion algebras with involution, is shown to have an affirmative…

Rings and Algebras · Mathematics 2015-08-11 M. G. Mahmoudi , A. -H. Nokhodkar

We present a program that allows for the computation of tensor products of irreducible representations of Lie algebras A-G based on the explicit construction of weight states. This straightforward approach (which is slower and more…

Mathematical Physics · Physics 2011-04-21 C. Horst , J. Reuter

Let A be a connected graded algebra and let E denote its Ext-algebra. There is a natural A-infinity algebra structure on E, and we prove that this structure is mainly determined by the relations of A. In particular, the coefficients of the…

K-Theory and Homology · Mathematics 2007-05-23 D. -M. Lu , J. H. Palmieri , Q. -S. Wu , J. J. Zhang