periodic zeta function
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11: 22.2 Definitions
§22.2 Definitions
… ►With … ►As a function of , with fixed , each of the 12 Jacobian elliptic functions is doubly periodic, having two periods whose ratio is not real. … … ►The Jacobian functions are related in the following way. …12: Bibliography B
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A program for computing the Riemann zeta function for complex argument.
Comput. Phys. Comm. 20 (3), pp. 441–445.
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On the Hurwitz zeta-function.
Rocky Mountain J. Math. 2 (1), pp. 151–157.
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Periodic Bernoulli numbers, summation formulas and applications.
In Theory and Application of Special Functions (Proc. Advanced
Sem., Math. Res. Center, Univ. Wisconsin, Madison, Wis.,
1975),
pp. 143–189.
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The Riemann-Siegel expansion for the zeta function: High orders and remainders.
Proc. Roy. Soc. London Ser. A 450, pp. 439–462.
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Occurrence of periodic Lamé functions at bifurcations in chaotic Hamiltonian systems.
J. Phys. A 34 (40), pp. 8199–8220.
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13: 32.10 Special Function Solutions
§32.10 Special Function Solutions
… ►with , , and , arbitrary constants. … ►with , , , and , arbitrary constants. … ►where the fundamental periods and are linearly independent functions satisfying the hypergeometric equation … ►14: 2.10 Sums and Sequences
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►As in §24.2, let and denote the th Bernoulli number and polynomial, respectively, and the th Bernoulli periodic function
.
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►Then
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►From §24.12(i), (24.2.2), and (24.4.27), is of constant sign .
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►where is Euler’s constant (§5.2(ii)) and is the derivative of the Riemann zeta function (§25.2(i)).
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§2.10(iii) Asymptotic Expansions of Entire Functions
…15: 4.2 Definitions
16: 28.32 Mathematical Applications
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►This leads to integral equations and an integral relation between the solutions of Mathieu’s equation (setting , in (28.32.3)).
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►Let be a solution of Mathieu’s equation (28.2.1) and be a solution of
…approaches the same value when tends to the endpoints of .
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►The first is the -periodicity of the solutions; the second can be their asymptotic form.
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17: 3.5 Quadrature
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►If in addition is periodic, , and the integral is taken over a period, then
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►The complex Gauss nodes have positive real part for all .
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►The integral (3.5.39) has the form (3.5.35) if we set , , and .
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►With the transformation , (3.5.42) becomes
…The integrand can be extended as a periodic
function on with period
and as noted in §3.5(i), the trapezoidal rule is exceptionally efficient in this case.
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18: 22.16 Related Functions
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§22.16(i) Jacobi’s Amplitude () Function
… ►Quasi-Periodicity
… ►§22.16(ii) Jacobi’s Epsilon Function
… ►Quasi-Addition and Quasi-Periodic Formulas
… ►§22.16(iii) Jacobi’s Zeta Function
…19: 3.4 Differentiation
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§3.4(ii) Analytic Functions
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3.4.17
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►As explained in §§3.5(i) and 3.5(ix) the composite trapezoidal rule can be very efficient for computing integrals with analytic periodic integrands.
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3.4.28
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