Question

inequality for a family of vectors

score 25 · Answer 1 · 2026-03-26 17:32:45

25

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inequality for a family of vectors

Published on 26 Mar 2026 - 17:32

score 139 · Answer 2 · 2026-03-27 12:02:00

139

Views

Permutations with the same sum

Published on 27 Mar 2026 - 12:02

score 74 · Answer 3 · 2026-03-22 21:39:15

74

Views

What about an approximation of the Hölder's constant associated to $\sum_{n=0}^\infty\gamma^n\cos(11^n\pi x)$, where $\gamma$ is the Euler's constant?

Published on 22 Mar 2026 - 21:39

score 275 · Answer 4 · 2026-03-28 13:57:43

275

Views

Spherical Geometry inequalities with triangles using main formula

Published on 28 Mar 2026 - 13:57

score 432 · Answer 5 · 2026-03-27 18:27:52

432

Views

Prove that there exists an irrational number $\\a$ such that $x< au< y$ if $x< y$ and $u> 0$.

Published on 27 Mar 2026 - 18:27

score 94 · Answer 6 · 2026-03-26 10:46:14

94

Views

Prove an inequality for the cosine integral

Published on 26 Mar 2026 - 10:46

score 146 · Answer 7 · 2018-02-28 11:20:57

146

Views

Showing $x^4-x^3+x^2-x+1>\frac{1}{2}$ for all $x \in \mathbb R$

Published on 28 Feb 2018 - 11:20

score 209 · Answer 8 · 2026-03-25 11:03:23

209

Views

zero-mean RV $$ with finite fourth moment, probability of being positive

Published on 25 Mar 2026 - 11:03

score 64 · Answer 9 · 2026-03-25 18:07:50

64

Views

Prove that for any $a, b, c>0$ we have:

Published on 25 Mar 2026 - 18:07

score 69 · Answer 10 · 2018-02-28 14:47:57

69

Views

Computing an upper bound in the complex plane

Published on 28 Feb 2018 - 14:47

score 91 · Answer 11 · 2026-03-22 18:54:16

91

Views

Find all the functions such that $ g ( x ^ m y ^ n ) \le g ( x ) ^ { \frac { a ^ 2 } m } g ( y ) ^ { \frac { b ^ 2 } n } $

Published on 22 Mar 2026 - 18:54

score 67 · Answer 12 · 2026-03-25 09:29:49

67

Views

Let $x, y, z>0$. Prove that $\left(\lg\frac{y}{z}\right)^{-\lg x}+\left(\lg\frac{z}{x}\right)^{-\lg y}+\left(\lg\frac{x}{y}\right)^{-\lg z} \ge3$

Published on 25 Mar 2026 - 9:29

score 183 · Answer 13 · 2026-03-27 03:49:45

183

Views

Higher Order Expansion For Median of Random Variable

Published on 27 Mar 2026 - 3:49

score 78 · Answer 14 · 2026-03-26 02:51:16

78

Views

Prove Inequality using Induction

Published on 26 Mar 2026 - 2:51

score 1.6k · Answer 15 · 2026-03-22 20:59:16

1.6k

Views

Is the power of a Holder continuous function still Holder continuous?

Published on 22 Mar 2026 - 20:59

List Question

inequality for a family of vectors

Permutations with the same sum

What about an approximation of the Hölder's constant associated to $\sum_{n=0}^\infty\gamma^n\cos(11^n\pi x)$, where $\gamma$ is the Euler's constant?

Spherical Geometry inequalities with triangles using main formula

Prove that there exists an irrational number $\\a$ such that $x< au< y$ if $x< y$ and $u> 0$.

Prove an inequality for the cosine integral

Showing $x^4-x^3+x^2-x+1>\frac{1}{2}$ for all $x \in \mathbb R$

zero-mean RV $$ with finite fourth moment, probability of being positive

Prove that for any $a, b, c>0$ we have:

Computing an upper bound in the complex plane

Find all the functions such that $ g ( x ^ m y ^ n ) \le g ( x ) ^ { \frac { a ^ 2 } m } g ( y ) ^ { \frac { b ^ 2 } n } $

Let $x, y, z>0$. Prove that $\left(\lg\frac{y}{z}\right)^{-\lg x}+\left(\lg\frac{z}{x}\right)^{-\lg y}+\left(\lg\frac{x}{y}\right)^{-\lg z} \ge3$

Higher Order Expansion For Median of Random Variable

Prove Inequality using Induction

Is the power of a Holder continuous function still Holder continuous?

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