Question

Inequality regarding sum of rational powers of positive real numbers

score 33 · Answer 1 · 2018-10-19 08:34:34

33

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Inequality regarding sum of rational powers of positive real numbers

Published on 19 Oct 2018 - 8:34

score 79 · Answer 2 · 2026-03-26 17:46:15

79

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Prove or disprove inequality with 3 variables

Published on 26 Mar 2026 - 17:46

score 155 · Answer 3 · 2018-10-19 10:09:20

155

Views

Show that $\text{trace}(A)\leq \sqrt{n}\sqrt{\text{trace}(AA^t)}$ where $A$ is in $M_{n}(\mathbb{R}).$

Published on 19 Oct 2018 - 10:09

score 62 · Answer 4 · 2026-03-25 07:48:00

62

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Isoperimetric Inequality via Brunn-Minkowski is valid for every norm?

Published on 25 Mar 2026 - 7:48

score 402 · Answer 5 · 2026-03-25 20:11:57

402

Views

Let $a, b, c \in \mathbb{R^+}$ and $abc=8$ Prove that $\frac {ab+4}{a+2} + \frac {bc+4}{b+2} + \frac {ca+4}{c+2} \ge 6$

Published on 25 Mar 2026 - 20:11

score 111 · Answer 6 · 2018-10-20 12:51:10

111

Views

Prove that $\sqrt{a}+ \sqrt{b} + \sqrt{c} + \sqrt{d} \le 10 $

Published on 20 Oct 2018 - 12:51

score 345 · Answer 7 · 2026-03-25 03:19:49

345

Views

Absolute value of difference between expected values of two distributions and total variation

Published on 25 Mar 2026 - 3:19

score 89 · Answer 8 · 2026-03-26 23:59:53

89

Views

Proving a binomial coefficient inequality per induction

Published on 26 Mar 2026 - 23:59

score 401 · Answer 9 · 2026-03-26 02:50:24

401

Views

Method to solve nonlinear system of inequalities

Published on 26 Mar 2026 - 2:50

score 519 · Answer 10 · 2026-03-26 17:33:39

519

Views

prove $\frac{x}{(ay + bz)} + \frac{y}{(az + bx)} + \frac{z}{(ax + by)} ≥ \frac{3}{(a+b)}$

Published on 26 Mar 2026 - 17:33

score 149 · Answer 11 · 2018-10-20 19:40:07

149

Views

Is it true that subadditivity together with absolute homogeneity implies that a function is nonnegative?

Published on 20 Oct 2018 - 19:40

score 612 · Answer 12 · 2026-03-27 18:28:11

612

Views

Find the range of $A$ if $A=\sin^{20}x+\cos^{48}x$

Published on 27 Mar 2026 - 18:28

score 52 · Answer 13 · 2026-03-27 10:34:21

52

Views

Need a hint on how to solve this inequality

Published on 27 Mar 2026 - 10:34

score 116 · Answer 14 · 2018-10-21 01:18:28

116

Views

How many solutions in the nonnegative integers does $a + b + c = 30$ have if $a, b, c \leq 20$?

Published on 21 Oct 2018 - 1:18

score 105 · Answer 15 · 2026-04-09 09:58:21

105

Views

Are there any general guidelines for proving limits of multivariable functions?

Published on 09 Apr 2026 - 9:58

List Question

Inequality regarding sum of rational powers of positive real numbers

Prove or disprove inequality with 3 variables

Show that $\text{trace}(A)\leq \sqrt{n}\sqrt{\text{trace}(AA^t)}$ where $A$ is in $M_{n}(\mathbb{R}).$

Isoperimetric Inequality via Brunn-Minkowski is valid for every norm?

Let $a, b, c \in \mathbb{R^+}$ and $abc=8$ Prove that $\frac {ab+4}{a+2} + \frac {bc+4}{b+2} + \frac {ca+4}{c+2} \ge 6$

Prove that $\sqrt{a}+ \sqrt{b} + \sqrt{c} + \sqrt{d} \le 10 $

Absolute value of difference between expected values of two distributions and total variation

Proving a binomial coefficient inequality per induction

Method to solve nonlinear system of inequalities

prove $\frac{x}{(ay + bz)} + \frac{y}{(az + bx)} + \frac{z}{(ax + by)} ≥ \frac{3}{(a+b)}$

Is it true that subadditivity together with absolute homogeneity implies that a function is nonnegative?

Find the range of $A$ if $A=\sin^{20}x+\cos^{48}x$

Need a hint on how to solve this inequality

How many solutions in the nonnegative integers does $a + b + c = 30$ have if $a, b, c \leq 20$?

Are there any general guidelines for proving limits of multivariable functions?

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