List questions from exponential-sum

Published on 05 May 2026 - 15:40

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orthogonality of complex exponentials

Published on 10 Apr 2026 - 20:52

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Why is $\sum_{k=0}^\infty e^{-\beta k} \frac{e^{-\mu t} (\mu t)^k}{k!} = \exp[-\mu t(1 - e^{-\beta})]$?

Published on 16 Apr 2026 - 7:57

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Conditional probability of sum of exponential random variables

Published on 12 Apr 2026 - 13:46

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Sum of exponential growth and decay

Published on 13 Apr 2026 - 1:54

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Solve inequality involving double summation, exponentiation and $\ln$

Published on 13 Apr 2026 - 16:34

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Inequality involving double summation

Published on 13 Apr 2026 - 8:02

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What is the series $\sum_{n=1}^{\infty} \frac{e^{-n^2 x}}{n}$?

Published on 13 Apr 2026 - 17:37

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Finding a closed form solution for an infinite sum

Published on 12 Apr 2026 - 14:27

326

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Infinite sum of cos(ln(n))/n

Published on 11 Apr 2026 - 0:15

67

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Writing an exponential formula where the factor decreases by $10%$ each time

Published on 13 Apr 2026 - 14:14

55

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Exponential formula with decreasing multiplication factor

Published on 11 Apr 2026 - 17:42

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How is the last step of this sum derived?

Published on 13 Apr 2026 - 20:35

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Baker-Hausdorff Lemma from Sakurai's book

Published on 14 Apr 2026 - 18:51

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For which $m$ is this sum of roots of unity $0$?

Published on 16 Apr 2026 - 20:06

List Question

Exponential Growth rate of population

orthogonality of complex exponentials

Why is $\sum_{k=0}^\infty e^{-\beta k} \frac{e^{-\mu t} (\mu t)^k}{k!} = \exp[-\mu t(1 - e^{-\beta})]$?

Conditional probability of sum of exponential random variables

Sum of exponential growth and decay

Solve inequality involving double summation, exponentiation and $\ln$

Inequality involving double summation

What is the series $\sum_{n=1}^{\infty} \frac{e^{-n^2 x}}{n}$?

Finding a closed form solution for an infinite sum

Infinite sum of cos(ln(n))/n

Writing an exponential formula where the factor decreases by $10%$ each time

Exponential formula with decreasing multiplication factor

How is the last step of this sum derived?

Baker-Hausdorff Lemma from Sakurai's book

For which $m$ is this sum of roots of unity $0$?

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