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11: 16.10 Expansions in Series of F q p Functions
§16.10 Expansions in Series of F q p Functions
16.10.1 F q + s p + r ( a 1 , , a p , c 1 , , c r b 1 , , b q , d 1 , , d s ; z ζ ) = k = 0 ( 𝐚 ) k ( α ) k ( β ) k ( z ) k ( 𝐛 ) k ( γ + k ) k k ! F q + 1 p + 2 ( α + k , β + k , a 1 + k , , a p + k γ + 2 k + 1 , b 1 + k , , b q + k ; z ) F s + 2 r + 2 ( k , γ + k , c 1 , , c r α , β , d 1 , , d s ; ζ ) .
Expansions of the form n = 1 ( ± 1 ) n F p + 1 p ( 𝐚 ; 𝐛 ; n 2 z 2 ) are discussed in Miller (1997), and further series of generalized hypergeometric functions are given in Luke (1969b, Chapter 9), Luke (1975, §§5.10.2 and 5.11), and Prudnikov et al. (1990, §§5.3, 6.8–6.9).
12: 26.16 Multiset Permutations
Let S = { 1 a 1 , 2 a 2 , , n a n } be the multiset that has a j copies of j , 1 j n . 𝔖 S denotes the set of permutations of S for all distinct orderings of the a 1 + a 2 + + a n integers. The number of elements in 𝔖 S is the multinomial coefficient (§26.4) ( a 1 + a 2 + + a n a 1 , a 2 , , a n ) . … The q -multinomial coefficient is defined in terms of Gaussian polynomials (§26.9(ii)) by …and again with S = { 1 a 1 , 2 a 2 , , n a n } we have …
13: 34.2 Definition: 3 j Symbol
The quantities j 1 , j 2 , j 3 in the 3 j symbol are called angular momenta. …The corresponding projective quantum numbers m 1 , m 2 , m 3 are given by …
34.2.4 ( j 1 j 2 j 3 m 1 m 2 m 3 ) = ( 1 ) j 1 j 2 m 3 Δ ( j 1 j 2 j 3 ) ( ( j 1 + m 1 ) ! ( j 1 m 1 ) ! ( j 2 + m 2 ) ! ( j 2 m 2 ) ! ( j 3 + m 3 ) ! ( j 3 m 3 ) ! ) 1 2 s ( 1 ) s s ! ( j 1 + j 2 j 3 s ) ! ( j 1 m 1 s ) ! ( j 2 + m 2 s ) ! ( j 3 j 2 + m 1 + s ) ! ( j 3 j 1 m 2 + s ) ! ,
where F 2 3 is defined as in §16.2. For alternative expressions for the 3 j symbol, written either as a finite sum or as other terminating generalized hypergeometric series F 2 3 of unit argument, see Varshalovich et al. (1988, §§8.21, 8.24–8.26).
14: 26.4 Lattice Paths: Multinomial Coefficients and Set Partitions
( n n 1 , n 2 , , n k ) is the number of ways of placing n = n 1 + n 2 + + n k distinct objects into k labeled boxes so that there are n j objects in the j th box. … These are given by the following equations in which a 1 , a 2 , , a n are nonnegative integers such that … M 1 is the multinominal coefficient (26.4.2): …For each n all possible values of a 1 , a 2 , , a n are covered. … where the summation is over all nonnegative integers n 1 , n 2 , , n k such that n 1 + n 2 + + n k = n . …
15: 1.12 Continued Fractions
A n and B n are called the n th (canonical) numerator and denominator respectively. … b 0 + a 1 b 1 + a 2 b 2 + is equivalent to b 0 + a 1 b 1 + a 2 b 2 + if there is a sequence { d n } n = 0 , d 0 = 1 ,
d n 0 , such that … Define … The continued fraction a 1 b 1 + a 2 b 2 + converges when … Then the convergents C n satisfy …
16: 16.12 Products
16.12.3 ( F 1 2 ( a , b c ; z ) ) 2 = k = 0 ( 2 a ) k ( 2 b ) k ( c 1 2 ) k ( c ) k ( 2 c 1 ) k k ! F 3 4 ( 1 2 k , 1 2 ( 1 k ) , a + b c + 1 2 , 1 2 a + 1 2 , b + 1 2 , 3 2 k c ; 1 ) z k , | z | < 1 .
17: 34.1 Special Notation
( j 1 j 2 j 3 m 1 m 2 m 3 ) ,
{ j 1 j 2 j 3 l 1 l 2 l 3 } ,
{ j 11 j 12 j 13 j 21 j 22 j 23 j 31 j 32 j 33 } .
An often used alternative to the 3 j symbol is the Clebsch–Gordan coefficient
34.1.1 ( j 1 m 1 j 2 m 2 | j 1 j 2 j 3 m 3 ) = ( 1 ) j 1 j 2 + m 3 ( 2 j 3 + 1 ) 1 2 ( j 1 j 2 j 3 m 1 m 2 m 3 ) ;
18: 35.8 Generalized Hypergeometric Functions of Matrix Argument
The generalized hypergeometric function F q p with matrix argument 𝐓 𝓢 , numerator parameters a 1 , , a p , and denominator parameters b 1 , , b q is …
§35.8(iii) F 2 3 Case
Let c = b 1 + b 2 a 1 a 2 a 3 . … Let a 1 + a 2 + a 3 + 1 2 ( m + 1 ) = b 1 + b 2 ; one of the a j be a negative integer; ( b 1 a 1 ) , ( b 1 a 2 ) , ( b 1 a 3 ) , ( b 1 a 1 a 2 a 3 ) > 1 2 ( m 1 ) . … Again, let c = b 1 + b 2 a 1 a 2 a 3 . …
19: 16.1 Special Notation
p , q nonnegative integers.
a 1 , a 2 , , a p b 1 , b 2 , , b q } real or complex parameters.
𝐚 vector ( a 1 , a 2 , , a p ) .
𝐛 vector ( b 1 , b 2 , , b q ) .
The main functions treated in this chapter are the generalized hypergeometric function F q p ( a 1 , , a p b 1 , , b q ; z ) , the Appell (two-variable hypergeometric) functions F 1 ( α ; β , β ; γ ; x , y ) , F 2 ( α ; β , β ; γ , γ ; x , y ) , F 3 ( α , α ; β , β ; γ ; x , y ) , F 4 ( α , β ; γ , γ ; x , y ) , and the Meijer G -function G p , q m , n ( z ; a 1 , , a p b 1 , , b q ) . Alternative notations are F q p ( 𝐚 𝐛 ; z ) , F q p ( a 1 , , a p ; b 1 , , b q ; z ) , and F q p ( 𝐚 ; 𝐛 ; z ) for the generalized hypergeometric function, F 1 ( α , β , β ; γ ; x , y ) , F 2 ( α , β , β ; γ , γ ; x , y ) , F 3 ( α , α , β , β ; γ ; x , y ) , F 4 ( α , β ; γ , γ ; x , y ) , for the Appell functions, and G p , q m , n ( z ; 𝐚 ; 𝐛 ) for the Meijer G -function.
20: 16.18 Special Cases
The F 1 1 and F 1 2 functions introduced in Chapters 13 and 15, as well as the more general F q p functions introduced in the present chapter, are all special cases of the Meijer G -function. …
16.18.1 F q p ( a 1 , , a p b 1 , , b q ; z ) = ( k = 1 q Γ ( b k ) / k = 1 p Γ ( a k ) ) G p , q + 1 1 , p ( z ; 1 a 1 , , 1 a p 0 , 1 b 1 , , 1 b q ) = ( k = 1 q Γ ( b k ) / k = 1 p Γ ( a k ) ) G q + 1 , p p , 1 ( 1 z ; 1 , b 1 , , b q a 1 , , a p ) .
As a corollary, special cases of the F 1 1 and F 1 2 functions, including Airy functions, Bessel functions, parabolic cylinder functions, Ferrers functions, associated Legendre functions, and many orthogonal polynomials, are all special cases of the Meijer G -function. …