2.9k citations
- University of WaterlooCA95 papers
- Western UniversityCA29 papers
- McMaster UniversityCA19 papers
- University of VictoriaCA19 papers
- Centre National de la Recherche ScientifiqueFR15 papers
- École Normale Supérieure de LyonFR15 papers
- Imperial College LondonGB15 papers
- University of California, Santa BarbaraUS15 papers
- University of CambridgeGB14 papers
- Laboratoire de Physique de l'ENS de LyonFR12 papers
- Massachusetts Institute of TechnologyUS10 papers
- McGill UniversityCA10 papers
Showing 2002 · gr-qcShow all
2 papers · 2 filters
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…
gr-qc2002★ 5 cited
Isolated Horizons in 2+1 Gravity
Abhay Ashtekar, Olaf Dreyer, Jacek Wisniewski
Using ideas employed in higher dimensional gravity, non-expanding, weakly isolated and isolated horizons are introduced and analyzed in 2+1 dimensions. While the basic definitions…