47 citations · 57 across the 3 of their papers we have counts for
3 papers
hep-th2007★ 47 cited
Topological Higher Gauge Theory - from BF to BFCG theory
F. Girelli, H. Pfeiffer, E. M. Popescu
We study generalizations of 3- and 4-dimensional BF-theory in the context of higher gauge theory. First, we construct topological higher gauge theories as discrete state sum models…
gr-qc2004★ 10 cited
Quantum general relativity and the classification of smooth manifolds
Hendryk Pfeiffer
The gauge symmetry of classical general relativity under space-time diffeomorphisms implies that any path integral quantization which can be interpreted as a sum over space-time ge…
gr-qc2002
Positivity of relativistic spin network evaluations
Hendryk Pfeiffer
Let G be a compact Lie group. Using suitable normalization conventions, we show that the evaluation of GxG-symmetric spin networks is non-negative whenever the edges are labeled by…