Spin Foam Models with Finite Groups

Figure 1

A face 𝑓, bordered by edges 𝑒₁,…,𝑒₅. The curvature is given by ℎ_𝑓=𝑔_𝑒⁻¹₅𝑔_𝑒4𝑔_𝑒⁻¹₃𝑔_𝑒2𝑔_𝑒1 (note the ordering).