Weight functions and drinfeld currents

被引：41
作者：
Enriquez, B.
Khoroshkin, S.
Pakuliak, S.
机构：
[1] CNRS, IRMA, F-67084 Strasbourg, France
[2] Inst Theoret & Expt Phys, Moscow 117259, Russia
[3] Joint Inst Nucl Res Dubna, Phys Theor Lab, Dubna 141980, Russia
来源：
COMMUNICATIONS IN MATHEMATICAL PHYSICS | 2007年 / 276卷 / 03期
关键词：
D O I：
10.1007/s00220-007-0351-y
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
引用
收藏
页码：691 / 725
页数：35
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