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Gelfand-Kirillov dimension of differential difference algebras [PDF]

open access: yesACM Communications in Computer Algebra, 2014
AbstractDifferential difference algebras, introduced by Mansfield and Szanto, arose naturally from differential difference equations. In this paper, we investigate the Gelfand–Kirillov dimension of differential difference algebras. We give a lower bound of the Gelfand–Kirillov dimension of a differential difference algebra and a sufficient condition ...
Zhang, Yang, Zhao, Xiangui
openaire   +3 more sources

Heisenberg realization for U_q(sln) on the flag manifold [PDF]

open access: yes, 1993
We give the Heisenberg realization for the quantum algebra $U_q(sl_n)$, which is written by the $q$-difference operator on the flag manifold. We construct it from the action of $U_q(sl_n)$ on the $q$-symmetric algebra $A_q(Mat_n)$ by the Borel-Weil like ...
A. Matsuo   +19 more
core   +2 more sources

(q,t)-deformed (skew) Hurwitz τ-functions

open access: yesNuclear Physics B, 2023
We follow the general recipe for constructing commutative families of W-operators, which provides Hurwitz-like expansions in symmetric functions (Macdonald polynomials), in order to obtain a difference operator example that gives rise to a (q,t ...
Fan Liu   +6 more
doaj   +1 more source

Ideal Theory and Algebraic Difference Equations [PDF]

open access: yesTransactions of the American Mathematical Society, 1939
J. F. Rittt introduced the idea of irreducible system of algebraic differential equations and showed that every system of such equations is equivalent to a finite set of irreducible systems. One of the objects of this paper is to develop a special type of abstract ideal theory which has Ritt's theorem as a consequence.
Ritt, J. F., Raudenbush, H. W. jun.
openaire   +2 more sources

Matrix factorization for solutions of the Yang-Baxter equation

open access: yes, 2015
We study solutions of the Yang-Baxter equation on a tensor product of an arbitrary finite-dimensional and an arbitrary infinite-dimensional representations of the rank one symmetry algebra.
Chicherin, D., Derkachov, S.
core   +3 more sources

Discrete Miura Opers and Solutions of the Bethe Ansatz Equations [PDF]

open access: yes, 2004
Solutions of the Bethe ansatz equations associated to the XXX model of a simple Lie algebra come in families called the populations. We prove that a population is isomorphic to the flag variety of the Langlands dual Lie algebra. The proof is based on the
Alexander Varchenko   +8 more
core   +3 more sources

Differential-difference system related to toroidal Lie algebra

open access: yes, 2001
We present a novel differential-difference system in (2+1)-dimensional space-time (one discrete, two continuum), arisen from the Bogoyavlensky's (2+1)-dimensional KdV hierarchy.
Bogoyavlensky O I   +14 more
core   +2 more sources

Conformally invariant elliptic Liouville equation and its symmetry preserving discretization

open access: yes, 2017
The symmetry algebra of the real elliptic Liouville equation is an infinite-dimensional loop algebra with the simple Lie algebra $o(3,1)$ as its maximal finite-dimensional subalgebra.
Levi, Decio   +2 more
core   +1 more source

Group algebras and enveloping algebras with nonmatrix and semigroup identities

open access: yes, 1998
Let K be a field of positive characteristic p, let R be either a group algebra K[G] or a restricted enveloping algebra u(L), and let I be the augmentation ideal of R. We first characterize those R for which I satisfies a polynomial identity not satisfied
David M. Riley   +6 more
core   +1 more source

On the algebra of symmetries of Laplace and Dirac operators [PDF]

open access: yes, 2018
We consider a generalization of the classical Laplace operator, which includes the Laplace-Dunkl operator defined in terms of the differential-difference operators associated with finite reflection groups called Dunkl operators.
De Bie, Hendrik   +2 more
core   +2 more sources

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