Generalized Jordanian R-matrices of Cremmer-Gervais type

An explicit quantization is given of certain skew-symmetric solutions of th e classical Yang-Baxter equation, yielding a family of R-matrices which gen eralize to higher dimensions the Jordanian R-matrices. Three different appr oaches to their construction are given: as twists of degenerations of the S hibukawa-Ueno, Yang-Baxter operators on meromorphic functions; as boundary solutions of the quantum Yang-Baxter equation; via a vertex-IRF transformat ion from solutions to the dynamical Yang-Baxter equation.