Triangle Coefficient
المؤلف:
Messiah, A.
المصدر:
Quantum Mechanics, Vol. 2. Amsterdam, Netherlands: North-Holland
الجزء والصفحة:
...
19-5-2019
1987
Triangle Coefficient
The triangle coefficient is function of three variables written 
and defined by
(Shore and Menzel 1968, p. 273), where 
is a factorial. It arises for example in the definition of the Wigner 6j-symbol.
REFERENCES:
Messiah, A. Quantum Mechanics, Vol. 2. Amsterdam, Netherlands: North-Holland, p. 1058, 1962.
Shore, B. W. and Menzel, D. H. Principles of Atomic Spectra. New York: Wiley, 1968.
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