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11: 23.15 Definitions
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βΊAlso denotes a bilinear transformation on , given by
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βΊA modular function
is a function of that is meromorphic in the half-plane , and has the property that for all , or for all belonging to a subgroup of SL,
βΊ
23.15.5
,
βΊwhere is a constant depending only on , and (the level) is an integer or half an odd integer.
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βΊ
23.15.7
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12: 26.10 Integer Partitions: Other Restrictions
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βΊThe set is denoted by .
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βΊNote that , with strict inequality for .
It is known that for , , with strict inequality for sufficiently large, provided that , or ; see Yee (2004).
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βΊwhere is the modified Bessel function (§10.25(ii)), and
…The quantity is real-valued.
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13: 1.1 Special Notation
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βΊ
βΊ
βΊIn the physics, applied maths, and engineering literature a common alternative to is ,
being a complex number or a matrix; the Hermitian conjugate of is usually being denoted .
real variables. | |
… | |
inverse of the square matrix | |
… | |
determinant of the square matrix | |
trace of the square matrix | |
exponential of | |
… |
14: 3.7 Ordinary Differential Equations
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βΊConsideration will be limited to ordinary linear second-order
differential equations
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βΊwhere is the matrix
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βΊLet
be the band matrix
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βΊIf, for example, , then on moving the contributions of and to the right-hand side of (3.7.13) the resulting system of equations is not tridiagonal, but can readily be made tridiagonal by annihilating the elements of that lie below the main diagonal and its two adjacent diagonals.
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βΊIf is on the closure of , then the discretized form (3.7.13) of the differential equation can be used.
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15: Bibliography K
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βΊ
Special functions and the Bieberbach conjecture.
Amer. Math. Monthly 95 (8), pp. 689–696.
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βΊ
Calculation of the complex zeros of the modified Bessel function of the second kind and its derivatives.
Zh. Vychisl. Mat. i Mat. Fiz. 24 (8), pp. 1150–1163.
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βΊ
The addition formula for Laguerre polynomials.
SIAM J. Math. Anal. 8 (3), pp. 535–540.
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βΊ
Bessel Functions and their Applications.
Analytical Methods and Special Functions, Vol. 8, Taylor & Francis Ltd., London-New York.
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βΊ
Some special cases of the generalized hypergeometric function
.
J. Comput. Appl. Math. 78 (1), pp. 79–95.
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16: 3.3 Interpolation
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βΊwhere is a simple closed contour in described in the positive rotational sense and enclosing the points .
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βΊand are the Lagrangian interpolation coefficients defined by
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βΊLet
be defined by
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βΊwhere is given by (3.3.3), and is a simple closed contour in described in the positive rotational sense and enclosing .
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βΊThen by using in Newton’s interpolation formula, evaluating and recomputing , another application of Newton’s rule with starting value gives the approximation , with 8 correct digits.
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17: 27.2 Functions
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βΊFunctions in this section derive their properties from the fundamental
theorem of arithmetic, which states that every integer can be represented uniquely as a product of prime powers,
…( is defined to be 0.)
…It can be expressed as a sum over all primes :
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βΊis the sum of the th powers of the divisors of , where the exponent can be real or complex.
Note that .
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18: 12.14 The Function
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βΊthe branch of
being zero when and defined by continuity elsewhere.
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βΊOther expansions, involving and , can be obtained from (12.4.3) to (12.4.6) by replacing by and by ; see Miller (1955, p. 80), and also (12.14.15) and (12.14.16).
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βΊHere is as in §12.10(ii), is defined by
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βΊuniformly for , with given by (12.10.23) and given by (12.10.24).
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βΊuniformly for , with , , , and as in §12.10(vii).
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19: 28.31 Equations of Whittaker–Hill and Ince
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βΊand constant values of , and , is called the Equation of
Whittaker–Hill.
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βΊWhen , we substitute
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βΊThey are denoted by
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βΊThey are real and distinct, and can be ordered so that and have precisely zeros, all simple, in .
…ambiguities in sign being resolved by requiring and to be continuous functions of and positive when .
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