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arxiv: math-ph/0402007 · v1 · submitted 2004-02-04 · 🧮 math-ph · math.MP

Orthogonal polynomials of several discrete variables and the 3nj-Wigner symbols: applications to spin networks

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keywords discreteorthogonalpolynomialsseveralsymbolsangularappearapplications
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The use of orthogonal polynomials for integral models on the lattice is applied to the 3nj-symbols that appear in the coupling of several angular momenta. These symbols are connected to the Ponzano-Regge method to solve the Einstein equations on a discrete Riemannian manifold.

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