Abstract
We give a self-contained introduction to the theory of 3nj -coefficients of \( \mathfrak{s}\mathfrak{u} \)(2) and \( \mathfrak{s}\mathfrak{u} \)(1, 1), their hypergeometric expressions, and their relations to orthogonal polynomials. The 3nj -coefficients of \( \mathfrak{s}\mathfrak{u} \)(2) play a crucial role in various physical applications (dealing with the quantization of angular momentum), but here we shall deal with their mathematical importance only.
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Van der Jeugt, J. (2003). 3nj-Coefficients and Orthogonal Polynomials of Hypergeometric Type. In: Koelink, E., Van Assche, W. (eds) Orthogonal Polynomials and Special Functions. Lecture Notes in Mathematics, vol 1817. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-44945-0_2
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DOI: https://doi.org/10.1007/3-540-44945-0_2
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