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Timeline for Lower bound of exponential sum

Current License: CC BY-SA 4.0

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S Nov 7, 2020 at 14:13 history suggested RobPratt
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Nov 7, 2020 at 13:54 review Suggested edits
S Nov 7, 2020 at 14:13
Nov 7, 2020 at 0:40 comment added Thomas Yang @GerryMyerson Ah that is my bad. I forgot to multiply $N^{-1}$.
Nov 7, 2020 at 0:39 history edited Thomas Yang CC BY-SA 4.0
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Nov 6, 2020 at 22:32 comment added Gerry Myerson OK. But you still have $\phi$ defined on $[0,1]$ but evaluated at $2,3,4,\dots,N$. Something's gotta give.
Nov 6, 2020 at 22:06 comment added Thomas Yang @GerryMyerson Sorry for the confusion. By a function $\phi\sim1$ I meant that $\phi$ is both bounded above and below by absolute constants.
Nov 6, 2020 at 22:05 history edited Thomas Yang CC BY-SA 4.0
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Nov 6, 2020 at 11:51 comment added Gerry Myerson I want to interpret $\phi'\sim1$ to mean $\phi'$ is asymptotic to one, but since $\phi$ is only defined on a finite interval, that can't be right, can it? But then, the summation doesn't make sense if $\phi$ is only defined on $[0,1]$, since it involves $\phi(n)$ for $n=1,2,\dots,N$. So, what do you really mean?
Nov 6, 2020 at 1:40 history asked Thomas Yang CC BY-SA 4.0