List questions from inequality

Published on 10 May 2026 - 14:50

163

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For sets $A_1, \ldots, A_k$, with $n^2$ different elements, $|A_i| \geq 2n$, and every set pair $A_i, A_j$ shares at most 1 element, show $k \leq n$

Published on 13 Apr 2026 - 19:24

577

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Symmetrization argument for dependent variables

Published on 06 May 2026 - 9:08

367

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An almost reverse triangle inequality involving two complex numbers

Published on 08 Apr 2026 - 22:26

104

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Aribtrary large ratio for eigenvalues of positive definite matrices

Published on 07 May 2026 - 14:16

923

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How is symmetry in an inequality determined?

Published on 20 Apr 2026 - 16:31

51

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Inequality concept problem

Published on 30 Apr 2026 - 9:04

924

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How can one prove that this polynomial is non-negative?

Published on 03 May 2026 - 16:38

115

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Concave function - Is uniform distribution best?

Published on 10 May 2026 - 15:07

106

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Why do most inequalities require the condition for variables to be positive.

Published on 11 Apr 2026 - 10:35

84

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Upper bound for $\mathbb{E}[e^{-aX}]$, where X follows binomial distribution $B(n,p)$

Published on 25 Mar 2026 - 4:38

85

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How to prove that $\frac{a^2 + b^2 -2}{a + b - 2} < 1 + b$ if $a < b$ and $a, b > 1$?

Published on 24 Mar 2026 - 19:08

297

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Inequality Proof in Real Numbers: If $p+q=1$ then $pq\le\frac14$

Published on 10 May 2026 - 12:34

57

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Help Solving an Inequality

Published on 10 May 2026 - 15:01

329

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Existence of solution of linear system with equality and inequality constraints

Published on 01 May 2026 - 0:48

List Question

Is this another valid delta-epsilon proof?

For sets $A_1, \ldots, A_k$, with $n^2$ different elements, $|A_i| \geq 2n$, and every set pair $A_i, A_j$ shares at most 1 element, show $k \leq n$

Symmetrization argument for dependent variables

An almost reverse triangle inequality involving two complex numbers

Aribtrary large ratio for eigenvalues of positive definite matrices

How is symmetry in an inequality determined?

Inequality concept problem

How can one prove that this polynomial is non-negative?

Concave function - Is uniform distribution best?

Why do most inequalities require the condition for variables to be positive.

Upper bound for $\mathbb{E}[e^{-aX}]$, where X follows binomial distribution $B(n,p)$

How to prove that $\frac{a^2 + b^2 -2}{a + b - 2} < 1 + b$ if $a < b$ and $a, b > 1$?

Inequality Proof in Real Numbers: If $p+q=1$ then $pq\le\frac14$

Help Solving an Inequality

Existence of solution of linear system with equality and inequality constraints

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