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The Ponzano-Regge model and Reidemeister torsion
[article]
2006
arXiv
pre-print
The Ponzano-Regge model of three-dimensional quantum gravity is well-defined when the observables satisfy a certain condition involving the twisted cohomology. In this case, the partition function is defined in terms of the Reidemeister torsion. Some consequences for the special cases of planar graphs and knots are given.
arXiv:gr-qc/0612170v1
fatcat:no3sj74xsbhs3pburxkohlkvem