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$$\lim_{\omega \to \infty} \prod_{N=1}^{\omega} {{1+e^{b \cdot c^{-N}}} \over 2}$$

For instance, the Lerch Transcendent is a analogous example of a special function that defines the sum of a useful infinite series. If it helps,

$$ \prod_{N=1}^{\infty} {{1+e^{b \cdot c^{-N}}} \over 2} \sim \left({{e^b-1} \over b} \right)^{1/(c-1)}$$

This asymptotic is exact if $c=2$. Here's a non-trivial application of the above.

I'd like the name of this infinite product so that I can learn more about it. For instance, does it have a closed form? I know that for $c=2$ it does. Also, it'd make it easier to generalize the above to other product series I have in mind. For instance, consider the possibility that the above product could be a specific example of a more general function.

P.S. I'd love to name it myself, if there isn't a name for it. Where would I go?

P.P.S Would I have better luck on MO?

Zach466920
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  • It reminds me of some of the Theta functions. Also, that limiting value makes me think of the generating function for the Bernoulli numbers. – marty cohen Sep 08 '15 at 18:56
  • @martycohen I do see the resemblance with the Theta functions. It'd be rather surprising if Fractals were related to Elliptic theory though. – Zach466920 Sep 08 '15 at 19:40

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