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S Oct 22, 2021 at 22:03 history bounty ended CommunityBot
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S Oct 14, 2021 at 20:24 history bounty started GSM
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Oct 31, 2018 at 11:56 comment added A Stasinski Regarding Q1: Have you checked to what extent Witten's paper answers this? Regarding Q2: $U(1)$ has infinitely many one-dimensional representations, so it doesn't have a Witten zeta function. As for $SU(n)$, its Witten zeta function is, as far as I know, unrelated to classical zeta/$L$ functions such as Dedekind zetas (or at least not related in an easy way). While some of its properties, like special values at even positive integers, mirror those of some classical zeta functions, other properties, like the apparent lack of a functional equation, break the analogy.
Oct 31, 2018 at 7:48 comment added abx The article by Witten that you mention gives an exact formula. For instance for $\operatorname{SU}(2) $, the proportionality factor is just $2(2\pi ^2)^{1-g}$.
Oct 30, 2018 at 21:17 history asked wonderich CC BY-SA 4.0