Integrable and Weyl modules for quantum affine sl2

摘要

Let t be an arbitrary summetrizable Kac-Moody Lie algebra and U_q(t) the corresponding quantized enveloping algebra of t defined over C(q). One can associate to any dominant integral weight μ of t an irreducible integrable U_q(t)-module L(μ). These modules have many interesting properties and are well understood, [K], [L1].