Jordanian deformation of SL(2) as a contraction of its Drinfeld-Jimbo deformation

Abstract

We show that h-deformation can be obtained, by a singular limit of a similarity transformation, from q-deformation; to be specefic, we obtain \\GL_h(2), its differential structure, its inhomogenous extension, and \\Uh{\\sl(2)} from their q-deformed counterparts.