List questions from functional-inequalities

Published on 25 Mar 2026 - 1:21

960

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Nonlinear Grönwall inequality

Published on 22 Mar 2026 - 15:21

195

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Is the derivative of a function bigger or equal to $e^x$ will always be bigger or equal to the function ?!

Published on 21 Mar 2026 - 21:24

415

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How to prove (approximate) inequalities involving exponential (logarithms) and polynomials.

Published on 21 Mar 2026 - 19:19

358

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Inequalities and limits?

Published on 22 Mar 2026 - 15:13

2.3k

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Solve $f (x + y) + f (y + z) + f (z + x) \ge 3f (x + 2y + 3z)$

Published on 22 Mar 2026 - 12:26

76

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Tips for functional equations using continuity

Published on 22 Mar 2026 - 1:42

18

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Functional to keep function bounded

Published on 22 Mar 2026 - 13:46

103

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Pulling out a maximum term from an integral

Published on 25 Mar 2026 - 20:34

69

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Integrating the fractional Laplacian over $\Omega$

Published on 23 Feb 2026 - 15:32

51

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Proving that a family of complicated functions is less than one particularly simple function

Published on 22 Mar 2026 - 4:38

83

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Ultracontractive semigroup generated by the fractional Laplacian

Published on 26 Mar 2023 - 15:28

114

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Rudin's RCA $5.22$ - An Abstract Approach to the Poisson Integral.

Published on 21 Mar 2026 - 23:02

91

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$f(n) = \frac{n^2 + n + 4}{2}, g(f(n)) = f(g(n))$ such that $g(n)$ is an integer.

Published on 23 Feb 2026 - 12:08

121

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Solve the functional inequality $f(x+1)>(f(x))^2-f(x)+1$

Published on 22 Mar 2026 - 10:23

List Question

Inequality with square root on both sides

Nonlinear Grönwall inequality

Is the derivative of a function bigger or equal to $e^x$ will always be bigger or equal to the function ?!

How to prove (approximate) inequalities involving exponential (logarithms) and polynomials.

Inequalities and limits?

Solve $f (x + y) + f (y + z) + f (z + x) \ge 3f (x + 2y + 3z)$

Tips for functional equations using continuity

Functional to keep function bounded

Pulling out a maximum term from an integral

Integrating the fractional Laplacian over $\Omega$

Proving that a family of complicated functions is less than one particularly simple function

Ultracontractive semigroup generated by the fractional Laplacian

Rudin's RCA $5.22$ - An Abstract Approach to the Poisson Integral.

$f(n) = \frac{n^2 + n + 4}{2}, g(f(n)) = f(g(n))$ such that $g(n)$ is an integer.

Solve the functional inequality $f(x+1)>(f(x))^2-f(x)+1$

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