Author/Authors :
Barrett، J W نويسنده , , Steele، C M نويسنده ,
Abstract :
The stationary phase technique is used to calculate asymptotic formulae for SO(4) relativistic spin networks. For the tetrahedral spin network this gives the square of the Ponzano–Regge asymptotic formula for the SU(2) 6j-symbol. For the 4-simplex (10jsymbol) the asymptotic formula is compared with numerical calculations of the spin network evaluation. Finally, we discuss the asymptotics of the SO(3, 1) 10j-symbol.
Keywords :
Sulfur Nucleophiles , Phosphorus Nucleophiles , Nitrobenzyl , sp3 Carbons , Heterocyclic Analogues , Photostimulated Reactions , Geminal Dihalides , Radicals Intermediates , Trihalides , Regiochemistry , Alicyclic Aliphatic Substrates , stereochemistry , Triorganylstannyl , EWG , Neopentyl , Aliphatic Substrates , Carbonylation , Nitroalkanes , Carbanions , (alpha)Carbon , Cycloalkyl Halides , Nitrogen Nucleophiles , Oxygen , sp2 Carbons , Cumyl