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1: 34.2 Definition: Symbol
§34.2 Definition: Symbol
►The quantities in the symbol are called angular momenta. …The corresponding projective quantum numbers are given by … ►where is defined as in §16.2. ►For alternative expressions for the symbol, written either as a finite sum or as other terminating generalized hypergeometric series of unit argument, see Varshalovich et al. (1988, §§8.21, 8.24–8.26).2: 19.2 Definitions
…
►where is a polynomial in while and are rational functions of .
…
►Here are real parameters, and and are real or complex variables, with , .
…
►If , then is pure imaginary.
…
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§19.2(iv) A Related Function:
… ►For the special cases of and see (19.6.15). …3: 34.6 Definition: Symbol
…
►The symbol may be defined either in terms of symbols or equivalently in terms of symbols:
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34.6.1
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34.6.2
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4: 34.5 Basic Properties: Symbol
5: 34.4 Definition: Symbol
§34.4 Definition: Symbol
►The symbol is defined by the following double sum of products of symbols: … ►Except in degenerate cases the combination of the triangle inequalities for the four symbols in (34.4.1) is equivalent to the existence of a tetrahedron (possibly degenerate) with edges of lengths ; see Figure 34.4.1. … ►where is defined as in §16.2. ►For alternative expressions for the symbol, written either as a finite sum or as other terminating generalized hypergeometric series of unit argument, see Varshalovich et al. (1988, §§9.2.1, 9.2.3).6: 34.3 Basic Properties: Symbol
§34.3 Basic Properties: Symbol
… ►When any one of is equal to , or , the symbol has a simple algebraic form. …For these and other results, and also cases in which any one of is or , see Edmonds (1974, pp. 125–127). … ►§34.3(ii) Symmetry
►Even permutations of columns of a symbol leave it unchanged; odd permutations of columns produce a phase factor , for example, …7: 34.1 Special Notation
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►The main functions treated in this chapter are the Wigner symbols, respectively,
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►
…
►An often used alternative to the symbol is the Clebsch–Gordan coefficient
…For other notations for , , symbols, see Edmonds (1974, pp. 52, 97, 104–105) and Varshalovich et al. (1988, §§8.11, 9.10, 10.10).
8: 34.7 Basic Properties: Symbol
9: 34.8 Approximations for Large Parameters
§34.8 Approximations for Large Parameters
►For large values of the parameters in the , , and symbols, different asymptotic forms are obtained depending on which parameters are large. … ►
34.8.1
,
…
►Uniform approximations in terms of Airy functions for the and symbols are given in Schulten and Gordon (1975b).
For approximations for the , , and symbols with error bounds see Flude (1998), Chen et al. (1999), and Watson (1999): these references also cite earlier work.
10: 26.4 Lattice Paths: Multinomial Coefficients and Set Partitions
…
►Table 26.4.1 gives numerical values of multinomials and partitions for .
These are given by the following equations in which are nonnegative integers such that
… is the multinominal coefficient (26.4.2):
… is the number of set partitions of with subsets of size 1, subsets of size 2, , and subsets of size :
…For each all possible values of are covered.
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