2 papers
math-ph2004
Constant connections, quantum holonomies and the Goldman bracket
J. E. Nelson, R. F. Picken
In the context of (2+1)--dimensional quantum gravity with negative cosmological constant and topology R x T^2, constant matrix--valued connections generate a q--deformed representa…
gr-qc1997
Constants of the Motion and the Quantum Modular Group in (2+1) - Dimensional Gravity
V. Moncrief, J. E. Nelson
Constants of motion are calculated for 2+1 dimensional gravity with topology R \times T^2 and negative cosmological constant. Certain linear combinations of them satisfy the anti -…