The universal R matrix for the Jordaniandeformation of sl ( 2 ) , and the contracted forms of so ( 4 )
نویسندگان
چکیده
We introduce a universal R matrix for the Jordanian deformation of U (sl(2)). Using Uh (so(4)) = Uh (sl(2))U?h(sl(2)), we obtain the universal R matrix for Uh (so(4)). Applying the graded contractions on the universal R matrix of Uh (so(4)), we show that there exist three distinct R matrices for all of the contracted algebras. It is shown that Uh (sl(2)), Uh (so(4)), and all of these contracted algebras are triangular.
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