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Series representations for γ and other mathematical constants

Представление в виде рядов γ и других математических констант

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Abstract

We present series representations for some mathematical constants, like γ, π, log 2, ζ(3). In particular, we prove that the following representation for Euler’s constant is valid:

$$ \gamma = \sum\limits_{r = 1}^\infty {\sum\limits_{s = 1}^r {\left( {\begin{array}{*{20}c} {r - 1} \\ {s - 1} \\ \end{array} } \right)( - 1)^{r - s} 2^s \left( {\frac{1} {s} + \log \frac{s} {{s + 1}}} \right)} } . $$

Реэюме

QPолучено представление в виде рядов некоторых математических констант, таких как π, log 2, ζ(3). В частности, установлено следуюшее представление для постоянной Эйлера:

$$ \gamma = \sum\limits_{r = 1}^\infty {\sum\limits_{s = 1}^r {\left( {\begin{array}{*{20}c} {r - 1} \\ {s - 1} \\ \end{array} } \right)( - 1)^{r - s} 2^s \left( {\frac{1} {s} + \log \frac{s} {{s + 1}}} \right)} } . $$

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References

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Correspondence to Horst Alzer.

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Alzer, H., Koumandos, S. Series representations for γ and other mathematical constants. Anal Math 34, 1–8 (2008). https://doi.org/10.1007/s10476-008-0101-1

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  • DOI: https://doi.org/10.1007/s10476-008-0101-1

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