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Communications in Mathematical Physics 276, 3 (2007) 691-725
Weight functions and Drinfeld currents
Benjamin Enriquez 1, Sergey Khoroshkin, Stanislav Pakuliak 2
(2007-12-01)

A universal weight function for a quantum affine algebra is a family of functions with values in a quotient of its Borel subalgebra, satisfying certain coalgebraic properties. In representations of the quantum affine algebra it gives off-shell Bethe vectors and is used in the construction of solutions of the qKZ equations. We construct a universal weight function for each untwisted quantum affine algebra, using projections onto the intersection of Borel subalgebras of different types, and study its functional properties.
1:  Institut de Recherche Mathématique Avancée (IRMA)
CNRS : UMR7501 – Université Louis Pasteur - Strasbourg I
2:  Laboratory of Theoretical Physics JINR
Joint Institute of Nuclear Research
Mathematics/Quantum Algebra

Mathematics/Mathematical Physics

Physics/Mathematical Physics

Nonlinear Sciences/Exactly Solvable and Integrable Systems
Fulltext link: 
http://fr.arXiv.org/abs/math/0610398