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21: Bibliography G
  • W. Gautschi (1994) Algorithm 726: ORTHPOL — a package of routines for generating orthogonal polynomials and Gauss-type quadrature rules. ACM Trans. Math. Software 20 (1), pp. 21–62.
  • A. Gervois and H. Navelet (1984) Some integrals involving three Bessel functions when their arguments satisfy the triangle inequalities. J. Math. Phys. 25 (11), pp. 3350–3356.
  • A. Gil, J. Segura, and N. M. Temme (2014) Algorithm 939: computation of the Marcum Q-function. ACM Trans. Math. Softw. 40 (3), pp. 20:1–20:21.
  • H. P. W. Gottlieb (1985) On the exceptional zeros of cross-products of derivatives of spherical Bessel functions. Z. Angew. Math. Phys. 36 (3), pp. 491–494.
  • Ya. I. Granovskiĭ, I. M. Lutzenko, and A. S. Zhedanov (1992) Mutual integrability, quadratic algebras, and dynamical symmetry. Ann. Phys. 217 (1), pp. 1–20.
  • 22: 18.1 Notation
  • Legendre: P n ( x ) .

  • Shifted Legendre: P n ( x ) .

  • Triangle: P m , n α , β , γ ( x , y ) .

  • 23: 6.10 Other Series Expansions
    §6.10(ii) Expansions in Series of Spherical Bessel Functions
    6.10.4 Si ( z ) = z n = 0 ( 𝗃 n ( 1 2 z ) ) 2 ,
    6.10.5 Cin ( z ) = n = 1 a n ( 𝗃 n ( 1 2 z ) ) 2 ,
    6.10.6 Ei ( x ) = γ + ln | x | + n = 0 ( 1 ) n ( x a n ) ( 𝗂 n ( 1 ) ( 1 2 x ) ) 2 , x 0 ,
    6.10.8 Ein ( z ) = z e z / 2 ( 𝗂 0 ( 1 ) ( 1 2 z ) + n = 1 2 n + 1 n ( n + 1 ) 𝗂 n ( 1 ) ( 1 2 z ) ) .
    24: Sidebar 9.SB2: Interference Patterns in Caustics
    The bright sharp-edged triangle is a caustic, that is a line of focused light. …
    25: 34.10 Zeros
    In a 3 j symbol, if the three angular momenta j 1 , j 2 , j 3 do not satisfy the triangle conditions (34.2.1), or if the projective quantum numbers do not satisfy (34.2.3), then the 3 j symbol is zero. Similarly the 6 j symbol (34.4.1) vanishes when the triangle conditions are not satisfied by any of the four 3 j symbols in the summation. …However, the 3 j and 6 j symbols may vanish for certain combinations of the angular momenta and projective quantum numbers even when the triangle conditions are fulfilled. …
    26: 10.59 Integrals
    §10.59 Integrals
    10.59.1 e i b t 𝗃 n ( t ) d t = { π i n P n ( b ) , 1 < b < 1 , 1 2 π ( ± i ) n , b = ± 1 , 0 , ± b > 1 ,
    where P n is the Legendre polynomial (§18.3). For an integral representation of the Dirac delta in terms of a product of spherical Bessel functions of the first kind see §1.17(ii), and for a generalization see Maximon (1991). …
    27: 30.10 Series and Integrals
    For expansions in products of spherical Bessel functions, see Flammer (1957, Chapter 6).
    28: 7.6 Series Expansions
    §7.6(ii) Expansions in Series of Spherical Bessel Functions
    7.6.8 erf z = 2 z π n = 0 ( 1 ) n ( 𝗂 2 n ( 1 ) ( z 2 ) 𝗂 2 n + 1 ( 1 ) ( z 2 ) ) ,
    7.6.9 erf ( a z ) = 2 z π e ( 1 2 a 2 ) z 2 n = 0 T 2 n + 1 ( a ) 𝗂 n ( 1 ) ( 1 2 z 2 ) , 1 a 1 .
    7.6.10 C ( z ) = z n = 0 𝗃 2 n ( 1 2 π z 2 ) ,
    7.6.11 S ( z ) = z n = 0 𝗃 2 n + 1 ( 1 2 π z 2 ) .
    29: 20 Theta Functions
    Chapter 20 Theta Functions
    30: 18.37 Classical OP’s in Two or More Variables
    §18.37(ii) OP’s on the Triangle
    Definition in Terms of Jacobi Polynomials
    18.37.7 P m , n α , β , γ ( x , y ) = P m n ( α , β + γ + 2 n + 1 ) ( 2 x 1 ) x n P n ( β , γ ) ( 2 x 1 y 1 ) , m n 0 , α , β , γ > 1 .
    18.37.8 0 < y < x < 1 P m , n α , β , γ ( x , y ) P j , α , β , γ ( x , y ) ( 1 x ) α ( x y ) β y γ d x d y = 0 , m j and/or n .