Question

Countable product of finite sets with a new metric, compact?

score 321 · Answer 1 · 2013-03-18 23:08:11

321

Views

Countable product of finite sets with a new metric, compact?

Published on 18 Mar 2013 - 23:08

score 194 · Answer 2 · 2026-03-25 15:44:06

194

Views

A more elementary proof that if $x_i>0$ for $1\leq i\leq n$, and $\sum x_i=1$, then $(x_1+\frac{1}{x_1})\cdots(x_n+\frac{1}{x_n})\geq(n+\frac1n)^n$

Published on 25 Mar 2026 - 15:44

score 33 · Answer 3 · 2020-07-31 18:47:27

33

Views

How can finite products of finite sums, $\prod_{k=0}^M \left \{ \sum_{n=0}^N a_{n,k} \right \} $, be represented in matrix form?

Published on 31 Jul 2020 - 18:47

score 68 · Answer 4 · 2020-07-31 21:44:36

68

Views

Proving a result for $\prod_{k=0}^{\infty}\Bigl(1-\frac{4}{(4k+a)^2}\Bigr)$

Published on 31 Jul 2020 - 21:44

score 174 · Answer 5 · 2020-08-07 11:53:07

174

Views

Infinite Cartesian product on a finite family of sets (example)

Published on 07 Aug 2020 - 11:53

score 234 · Answer 6 · 2020-08-08 11:01:06

234

Views

What rule is used to expand the following product (LHS) into the expression (RHS)?

Published on 08 Aug 2020 - 11:01

score 261 · Answer 7 · 2026-03-26 14:20:50

261

Views

Are there "tri-commutative" structures for which: $AB \neq BA$, $BC \neq CB$, yet $ABC = BAC = ACB$?

Published on 26 Mar 2026 - 14:20

score 256 · Answer 8 · 2020-08-10 22:17:23

256

Views

Closed form of $\int\limits_0^{2\pi} \prod\limits_{j=1}^n \cos(jx)dx$ and combinatorial link

Published on 10 Aug 2020 - 22:17

score 305 · Answer 9 · 2020-08-13 12:56:04

305

Views

How do I show that $\sum_{i=1}^n\left(\prod_{q=0}^p (i+q)\right) = \frac{1}{p+2}\prod_{s=0}^{p+1}(n+s)$?

Published on 13 Aug 2020 - 12:56

score 118 · Answer 10 · 2020-08-16 14:12:34

118

Views

Please help me to understand the math signs in Self Initializing Quadratic Sieve polynomial step

Published on 16 Aug 2020 - 14:12

score 152 · Answer 11 · 2026-03-26 22:14:54

152

Views

Understanding the probability of measure in the Deutsch-Jozsa quantum algorithm

Published on 26 Mar 2026 - 22:14

score 309 · Answer 12 · 2026-03-26 22:13:19

309

Views

Outer Measure of Cartesian Product with Interval

Published on 26 Mar 2026 - 22:13

score 26 · Answer 13 · 2020-08-23 09:39:05

Is my formula true for this sum $\sum_{a_n=1}^{t+1}\left(\sum_{a_{n-1}=1}^{a_n}\left(...\left(\sum_{a_0=1}^{a_1}a_0\right)...\right)\right)$?

score 62 · Answer 14 · 2020-08-23 14:49:41

62

Views

Uniqueness of the True cofinality

Published on 23 Aug 2020 - 14:49

score 87 · Answer 15 · 2020-08-24 15:36:41

87

Views

Counting factors: eg, how can I tell there are $n+1$ factors in $(n+\frac12) (n-\frac12)(n-\frac32)\cdots\frac32\cdot\frac12$?

Published on 24 Aug 2020 - 15:36

List Question

Countable product of finite sets with a new metric, compact?

A more elementary proof that if $x_i>0$ for $1\leq i\leq n$, and $\sum x_i=1$, then $(x_1+\frac{1}{x_1})\cdots(x_n+\frac{1}{x_n})\geq(n+\frac1n)^n$

How can finite products of finite sums, $\prod_{k=0}^M \left \{ \sum_{n=0}^N a_{n,k} \right \} $, be represented in matrix form?

Proving a result for $\prod_{k=0}^{\infty}\Bigl(1-\frac{4}{(4k+a)^2}\Bigr)$

Infinite Cartesian product on a finite family of sets (example)

What rule is used to expand the following product (LHS) into the expression (RHS)?

Are there "tri-commutative" structures for which: $AB \neq BA$, $BC \neq CB$, yet $ABC = BAC = ACB$?

Closed form of $\int\limits_0^{2\pi} \prod\limits_{j=1}^n \cos(jx)dx$ and combinatorial link

How do I show that $\sum_{i=1}^n\left(\prod_{q=0}^p (i+q)\right) = \frac{1}{p+2}\prod_{s=0}^{p+1}(n+s)$?

Please help me to understand the math signs in Self Initializing Quadratic Sieve polynomial step

Understanding the probability of measure in the Deutsch-Jozsa quantum algorithm

Outer Measure of Cartesian Product with Interval

Is my formula true for this sum $\sum_{a_n=1}^{t+1}\left(\sum_{a_{n-1}=1}^{a_n}\left(...\left(\sum_{a_0=1}^{a_1}a_0\right)...\right)\right)$?

Uniqueness of the True cofinality

Counting factors: eg, how can I tell there are $n+1$ factors in $(n+\frac12) (n-\frac12)(n-\frac32)\cdots\frac32\cdot\frac12$?

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