Formula:DLMF:25.13:E3

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\HurwitzZeta @ 1 - s x = Γ ( s ) ( 2 π ) s ( e - π i s / 2 \PeriodicZeta @ x s + e π i s / 2 \PeriodicZeta @ - x s ) \HurwitzZeta @ 1 𝑠 𝑥 Euler-Gamma 𝑠 superscript 2 𝑠 imaginary-unit 𝑠 2 \PeriodicZeta @ 𝑥 𝑠 imaginary-unit 𝑠 2 \PeriodicZeta @ 𝑥 𝑠 {\displaystyle{\displaystyle{\displaystyle\HurwitzZeta@{1-s}{x}=\frac{\Gamma% \left(s\right)}{(2\pi)^{s}}\left({\mathrm{e}^{-\pi\mathrm{i}s/2}}\PeriodicZeta% @{x}{s}+{\mathrm{e}^{\pi\mathrm{i}s/2}}\PeriodicZeta@{-x}{s}\right)}}}

Constraint(s)

0 < x < 1 0 𝑥 1 {\displaystyle{\displaystyle{\displaystyle 0<x<1}}} &
s > 0 𝑠 0 {\displaystyle{\displaystyle{\displaystyle\Re{s}>0}}}


Proof

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Symbols List

& : logical and
ζ 𝜁 {\displaystyle{\displaystyle{\displaystyle\zeta}}}  : Hurwitz zeta function : http://dlmf.nist.gov/25.11#E1
Γ Γ {\displaystyle{\displaystyle{\displaystyle\Gamma}}}  : Euler's gamma function : http://dlmf.nist.gov/5.2#E1
π 𝜋 {\displaystyle{\displaystyle{\displaystyle\pi}}}  : ratio of a circle's circumference to its diameter : http://dlmf.nist.gov/5.19.E4
e e {\displaystyle{\displaystyle{\displaystyle\mathrm{e}}}}  : the base of the natural logarithm : http://dlmf.nist.gov/4.2.E11
i i {\displaystyle{\displaystyle{\displaystyle\mathrm{i}}}}  : imaginary unit : http://dlmf.nist.gov/1.9.i
F 𝐹 {\displaystyle{\displaystyle{\displaystyle F}}}  : periodic zeta function : http://dlmf.nist.gov/25.13#E1
z 𝑧 {\displaystyle{\displaystyle{\displaystyle\Re{z}}}}  : real part : http://dlmf.nist.gov/1.9#E2

Bibliography

Equation (3), Section 25.13 of DLMF.

URL links

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