List questions from inequality

Published on 01 Apr 2026 - 4:45

64

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Can we expect $\|fg\|_{X(\mathbb R^{2d} )} \leq C \|f\|_{X(\mathbb R^{2d})} \|g\|_{X(\mathbb R^d)}$ in Banach algebra?

Published on 26 Mar 2026 - 4:53

184

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Contradictory statements while solving inequalities involving absolutes?

Published on 25 Mar 2026 - 7:42

82

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Verifying a Stubborn Inequality

Published on 01 Apr 2026 - 17:44

32

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If $(a-2)<0$ then what is the value range of a for $-2 < -a/(a-2) <1$?

Published on 24 May 2018 - 5:03

45

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Bounds of a sequence of numbers

Published on 24 May 2018 - 11:57

782

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$E[X^4]+E[X]^4 \geq 2E[X^2]^2$ for $X \geq 0$

Published on 28 Mar 2026 - 20:57

418

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Proving an inequality for fourier coefficients

Published on 26 Mar 2026 - 14:42

111

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Inequality with sum involving minimums

Published on 25 Mar 2026 - 17:02

140

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Distinctness in constructive math

Published on 25 Mar 2026 - 6:07

281

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Proof of Muirhead's inequality

Published on 03 Apr 2026 - 17:41

293

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How to solve $\frac{1}{2^x+3} \geq \frac{1}{2^{x+2}-1}$?

Published on 25 Mar 2026 - 13:13

26

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How does taking real part of a matrix affect the Frobenius norm of its powers?

Published on 28 Mar 2026 - 22:28

162

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Show that $f$ is constant.

Published on 25 May 2018 - 8:55

58

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An inequality involving limit inferior and limit superior

Published on 25 May 2018 - 9:16

List Question

A tricky algebraic inequality

Can we expect $\|fg\|_{X(\mathbb R^{2d} )} \leq C \|f\|_{X(\mathbb R^{2d})} \|g\|_{X(\mathbb R^d)}$ in Banach algebra?

Contradictory statements while solving inequalities involving absolutes?

Verifying a Stubborn Inequality

If $(a-2)<0$ then what is the value range of a for $-2 < -a/(a-2) <1$?

Bounds of a sequence of numbers

$E[X^4]+E[X]^4 \geq 2E[X^2]^2$ for $X \geq 0$

Proving an inequality for fourier coefficients

Inequality with sum involving minimums

Distinctness in constructive math

Proof of Muirhead's inequality

How to solve $\frac{1}{2^x+3} \geq \frac{1}{2^{x+2}-1}$?

How does taking real part of a matrix affect the Frobenius norm of its powers?

Show that $f$ is constant.

An inequality involving limit inferior and limit superior

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