GENERALIZED BARRETT–CRANE VERTICES AND INVARIANTS OF EMBEDDED GRAPHS

DOI10.1142/S0218216599000511zbMATH Open0933.57006arXivmath/9801131OpenAlexW2051107501MaRDI QIDQ4268055

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Publication date: 4 April 2000

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Abstract: We describe q-analogues of the 4-vertices in the Spin(4)-recoupling theory introduced by Barrett and Crane in gr-qc/9709028 using Kauffman-Lins SU(2)-recoupling theory in each factor and generalize them to obtain operators with the symmetry properties of unframed n-vertices. The elementary properties of the resulting invariants of embedded unframed graphs are examined.

Full work available at URL: https://arxiv.org/abs/math/9801131

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