Question

How can I prove that $\mathbb{E}[g^{2k}] = (2k-1)!!$

score 293 · Answer 1 · 2026-04-01 04:41:57

293

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How can I prove that $\mathbb{E}[g^{2k}] = (2k-1)!!$

Published on 01 Apr 2026 - 4:41

score 230 · Answer 2 · 2026-04-08 19:08:23

230

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Are there theorems about extraneous solutions?

Published on 08 Apr 2026 - 19:08

score 109 · Answer 3 · 2026-03-25 20:09:49

109

Views

Chinese remainder theorem and Wikipedia Proof

Published on 25 Mar 2026 - 20:09

score 76 · Answer 4 · 2026-03-26 16:06:47

76

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An example for dynamical systems and its Lyapunov number

Published on 26 Mar 2026 - 16:06

score 497 · Answer 5 · 2019-07-22 19:31:41

497

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Every open set $A\subseteq\mathbb{R}$ is countable union of bounded open intervals: one proof.

Published on 22 Jul 2019 - 19:31

score 49 · Answer 6 · 2019-07-23 01:37:43

49

Views

proof that k times a limit at negative inifinity equals negative infinity.

Published on 23 Jul 2019 - 1:37

score 738 · Answer 7 · 2019-07-23 07:24:34

738

Views

A family of probability measures is dominated by a $\sigma$-finite measure then it is dominated by a probability measure.

Published on 23 Jul 2019 - 7:24

score 156 · Answer 8 · 2019-07-24 11:39:39

156

Views

$ x > y \implies -x < -y$, why?

Published on 24 Jul 2019 - 11:39

score 477 · Answer 9 · 2026-04-09 06:55:59

477

Views

First Isomorphism Theorem of quotient space

Published on 09 Apr 2026 - 6:55

score 327 · Answer 10 · 2026-04-01 07:56:18

327

Views

On Mazur's original proof of his theorem: in Banach spaces convex hulls of precompact sets are precompact.

Published on 01 Apr 2026 - 7:56

score 529 · Answer 11 · 2019-07-25 02:00:26

529

Views

Baby Rudin 5.26

Published on 25 Jul 2019 - 2:00

score 156 · Answer 12 · 2026-03-28 16:04:03

156

Views

Prove or give Counterexample: Is this a Basis (from a more abstract perspective)

Published on 28 Mar 2026 - 16:04

score 109 · Answer 13 · 2026-03-30 01:29:48

109

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$x +\frac 1 x\leq -2$ for $x\leq 0$ How do I prove this statement using algebra?

Published on 30 Mar 2026 - 1:29

score 28 · Answer 14 · 2019-07-25 18:56:14

28

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Proof for: A fiunction f : R --> R is continous if and only if f^-1((a,b)) is a countable union of open intervals for every (a,b) subset of R

Published on 25 Jul 2019 - 18:56

score 64 · Answer 15 · 2026-04-09 01:06:24

64

Views

Proof explanation strict inequality with sequence

Published on 09 Apr 2026 - 1:06

List Question

How can I prove that $\mathbb{E}[g^{2k}] = (2k-1)!!$

Are there theorems about extraneous solutions?

Chinese remainder theorem and Wikipedia Proof

An example for dynamical systems and its Lyapunov number

Every open set $A\subseteq\mathbb{R}$ is countable union of bounded open intervals: one proof.

proof that k times a limit at negative inifinity equals negative infinity.

A family of probability measures is dominated by a $\sigma$-finite measure then it is dominated by a probability measure.

$ x > y \implies -x < -y$, why?

First Isomorphism Theorem of quotient space

On Mazur's original proof of his theorem: in Banach spaces convex hulls of precompact sets are precompact.

Baby Rudin 5.26

Prove or give Counterexample: Is this a Basis (from a more abstract perspective)

$x +\frac 1 x\leq -2$ for $x\leq 0$ How do I prove this statement using algebra?

Proof for: A fiunction f : R --> R is continous if and only if f^-1((a,b)) is a countable union of open intervals for every (a,b) subset of R

Proof explanation strict inequality with sequence

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