Formula:DLMF:25.16:E11

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\GenEulerSumH @ s z = n = 1 1 n s m = 1 n 1 m z \GenEulerSumH @ 𝑠 𝑧 superscript subscript 𝑛 1 1 superscript 𝑛 𝑠 superscript subscript 𝑚 1 𝑛 1 superscript 𝑚 𝑧 {\displaystyle{\displaystyle{\displaystyle\GenEulerSumH@{s}{z}=\sum_{n=1}^{% \infty}\frac{1}{n^{s}}\sum_{m=1}^{n}\frac{1}{m^{z}}}}}

Constraint(s)

( s + z ) > 1 𝑠 𝑧 1 {\displaystyle{\displaystyle{\displaystyle\Re{(s+z)}>1}}}


Note(s)

\EulerSumH @ s \EulerSumH @ 𝑠 {\displaystyle{\displaystyle{\displaystyle\EulerSumH@{s}}}} is the special case \GenEulerSumH @ s 1 \GenEulerSumH @ 𝑠 1 {\displaystyle{\displaystyle{\displaystyle\GenEulerSumH@{s}{1}}}} of \GenEulerSumH @ s z \GenEulerSumH @ 𝑠 𝑧 {\displaystyle{\displaystyle{\displaystyle\GenEulerSumH@{s}{z}}}}


Proof

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Symbols List

H 𝐻 {\displaystyle{\displaystyle{\displaystyle H}}}  : generalized Euler sums : http://dlmf.nist.gov/25.16#SS2.p7
Σ Σ {\displaystyle{\displaystyle{\displaystyle\Sigma}}}  : sum : http://drmf.wmflabs.org/wiki/Definition:sum
z 𝑧 {\displaystyle{\displaystyle{\displaystyle\Re{z}}}}  : real part : http://dlmf.nist.gov/1.9#E2
H 𝐻 {\displaystyle{\displaystyle{\displaystyle H}}}  : Euler sums : http://dlmf.nist.gov/25.16#SS2.p1

Bibliography

Equation (11), Section 25.16 of DLMF.

URL links

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