Question

Asymptotic probability $P(A^2=0)$ for a random matrix over $\mathbb F_2$

score 158 · Answer 1 · 2026-04-15 21:05:21

158

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Asymptotic probability $P(A^2=0)$ for a random matrix over $\mathbb F_2$

Published on 15 Apr 2026 - 21:05

score 174 · Answer 2 · 2026-04-16 20:36:25

174

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Alternate proof of $\sum_{j=0}^{m}\sum_{k=0}^{n}\left(-1\right)^{j+k}\binom{j+k}{k}\binom{m}{j}\binom{n}{k}=\delta_{mn}$

Published on 16 Apr 2026 - 20:36

score 33 · Answer 3 · 2026-04-10 19:54:53

33

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How was this summation simplified to 1/i?

Published on 10 Apr 2026 - 19:54

score 22 · Answer 4 · 2026-04-12 05:59:08

22

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Summation Proof For $ Y_{ij} - \bar Y_j $

Published on 12 Apr 2026 - 5:59

score 149 · Answer 5 · 2026-04-12 19:06:25

149

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Sum of Scaled Harmonic Numbers

Published on 12 Apr 2026 - 19:06

score 88 · Answer 6 · 2026-04-10 08:58:26

88

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Simplify a sum of harmonic numbers

Published on 10 Apr 2026 - 8:58

score 78 · Answer 7 · 2026-04-11 18:31:17

78

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How do we efficiently compute the value of expression given below?

Published on 11 Apr 2026 - 18:31

score 694 · Answer 8 · 2026-04-15 07:47:41

694

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Summation of greatest common divisor: $\sum\limits_{i = 1}^n \sum\limits_{j = 1}^n \frac{(i * j)}{\gcd(i,j)^2}$

Published on 15 Apr 2026 - 7:47

score 111 · Answer 9 · 2026-04-15 05:57:42

111

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Which of the following statements describe the sum $S_n = {\sum\limits_{k=2}^{n} \frac{k^2-2}{k!}}$ correctly?

Published on 15 Apr 2026 - 5:57

score 331 · Answer 10 · 2026-04-09 11:46:34

331

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How to prove that $\sum_{k=0}^{\infty}\binom{k+r}{r}p^r(1-p)^k=\frac 1p$?

Published on 09 Apr 2026 - 11:46

score 93 · Answer 11 · 2026-04-12 06:22:39

93

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Stuck on a probability law problem

Published on 12 Apr 2026 - 6:22

score 107 · Answer 12 · 2026-04-11 05:37:02

107

Views

Sum of Squares of Floor Function

Published on 11 Apr 2026 - 5:37

score 154 · Answer 13 · 2026-04-13 18:53:32

154

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On a alternate series representation of Riemann xi function

Published on 13 Apr 2026 - 18:53

score 100 · Answer 14 · 2026-04-14 03:39:02

100

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$\sum_{k=0}^\infty \frac{1}{(4k+1)(4k+3)}$

Published on 14 Apr 2026 - 3:39

score 301 · Answer 15 · 2026-04-14 11:14:22

301

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Formalizing a proof for $ \sum_{n=0}^\infty \sum_{k=n}^{\infty} a_k = \sum_{n=0}^{\infty} (n+1)a_n$

Published on 14 Apr 2026 - 11:14

List Question

Asymptotic probability $P(A^2=0)$ for a random matrix over $\mathbb F_2$

Alternate proof of $\sum_{j=0}^{m}\sum_{k=0}^{n}\left(-1\right)^{j+k}\binom{j+k}{k}\binom{m}{j}\binom{n}{k}=\delta_{mn}$

How was this summation simplified to 1/i?

Summation Proof For $ Y_{ij} - \bar Y_j $

Sum of Scaled Harmonic Numbers

Simplify a sum of harmonic numbers

How do we efficiently compute the value of expression given below?

Summation of greatest common divisor: $\sum\limits_{i = 1}^n \sum\limits_{j = 1}^n \frac{(i * j)}{\gcd(i,j)^2}$

Which of the following statements describe the sum $S_n = {\sum\limits_{k=2}^{n} \frac{k^2-2}{k!}}$ correctly?

How to prove that $\sum_{k=0}^{\infty}\binom{k+r}{r}p^r(1-p)^k=\frac 1p$?

Stuck on a probability law problem

Sum of Squares of Floor Function

On a alternate series representation of Riemann xi function

$\sum_{k=0}^\infty \frac{1}{(4k+1)(4k+3)}$

Formalizing a proof for $ \sum_{n=0}^\infty \sum_{k=n}^{\infty} a_k = \sum_{n=0}^{\infty} (n+1)a_n$

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