List questions from upper-lower-bounds

Published on 25 Mar 2026 - 9:48

1k

Views

Is there a sharper upper bound of the spectral norm of Hilbert matrix than $3+2\sqrt{2}$?

Published on 27 Aug 2018 - 3:12

184

Views

Show that $\int_0^2 \int_0^2 \frac{x}{1+\ln(x^2y^2)} \,\mathrm{d}x \,\mathrm{d}y \leq 4$

Published on 27 Aug 2018 - 10:31

180

Views

Sum of alternating ratio of combinations

Published on 27 Mar 2026 - 12:34

1k

Views

Bound of derivative of Lipschitz continuous function

Published on 25 Mar 2026 - 9:50

59

Views

With $\alpha>0$, showing that $\int_0^1 t^\alpha(1-t^2)^kdt$ goes to $0$ as $k\to+\infty$

Published on 29 Aug 2018 - 8:32

44

Views

Is $\frac{y-2}{x^2+(y-2)^2}$ bounded?

Published on 29 Aug 2018 - 18:08

128

Views

Upper-bound on sum of two vectors

Published on 29 Aug 2018 - 21:25

206

Views

Prove sequence (of integrals) is bounded.

Published on 01 Sep 2018 - 11:47

67

Views

Proving the supremum

Published on 26 Mar 2026 - 6:11

90

Views

Finding if g(x) is lower or upper algorithm bound for f(x)

Published on 03 Sep 2018 - 15:45

27

Views

Need explanation of answer for finding $f = O(g)$ or $f = Ω(g)$ for $f(n) = [log(n)]^2$, $g(n) = n^{log(n)}$

Published on 03 Sep 2018 - 17:55

125

Views

how to show that $ \frac{\theta e^t(1-\theta)}{(1-\theta+\theta e^t)^2} \leq\frac{1}{4}$?

Published on 25 Mar 2026 - 10:59

114

Views

Lower bound on absolute smallest root of a polynomial

Published on 05 Sep 2018 - 13:13

152

Views

Does the empty set have a supremum? Is it $-\infty$?

Published on 09 Sep 2018 - 4:19

List Question

Boundedness of a subset using boundedness of linear functionals

Is there a sharper upper bound of the spectral norm of Hilbert matrix than $3+2\sqrt{2}$?

Show that $\int_0^2 \int_0^2 \frac{x}{1+\ln(x^2y^2)} \,\mathrm{d}x \,\mathrm{d}y \leq 4$

Sum of alternating ratio of combinations

Bound of derivative of Lipschitz continuous function

With $\alpha>0$, showing that $\int_0^1 t^\alpha(1-t^2)^kdt$ goes to $0$ as $k\to+\infty$

Is $\frac{y-2}{x^2+(y-2)^2}$ bounded?

Upper-bound on sum of two vectors

Prove sequence (of integrals) is bounded.

Proving the supremum

Finding if g(x) is lower or upper algorithm bound for f(x)

Need explanation of answer for finding $f = O(g)$ or $f = Ω(g)$ for $f(n) = [log(n)]^2$, $g(n) = n^{log(n)}$

how to show that $ \frac{\theta e^t(1-\theta)}{(1-\theta+\theta e^t)^2} \leq\frac{1}{4}$?

Lower bound on absolute smallest root of a polynomial

Does the empty set have a supremum? Is it $-\infty$?

Trending Questions

Popular # Hahtags

Popular Questions