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May
7
answered $\log|x|\in\text{BMO}(\mathbb R^n)$
Apr
29
asked Is $\int_{\mathbb R} f(\sum_{k=1}^n\frac{1}{x-x_k})dx$ independent of $x_k$'s for certain $f$?
Apr
28
answered On the inequality $ \int_{-\infty}^{+\infty}\frac{(p'(x))^2}{(p'(x))^2+(p(x))^2}\,dx \le n^{3/2}\pi.$
Apr
4
answered Vector spaces and intersections
Mar
9
answered A beautiful inequality for convex functions
Nov
1
answered prove $f(x)$ has at least $2n$ roots
Oct
23
answered Limit of $x_n/n$ as $n\to\infty$
Oct
22
answered A Problem on Improper Integrals
Oct
22
answered For a closed plane curve, showing some inequalities.
Oct
21
answered Computing a limit almost surely using the strong law of large numbers
Oct
21
answered convergence of total variation measure
Oct
20
answered Order of Double Coset
Oct
18
answered If $\sqrt[3]{a} + \sqrt[3]{b}$ is rational then prove $\sqrt[3]{a}$ and $\sqrt[3]{b}$ are rational
Oct
17
answered Show that $\int_{1}^\infty \dotsb\int_{1}^\infty \frac{dx_1 \dotsb dx_n}{x_1^{\alpha_1}+\dotsb + x_n^{\alpha_n}}<\infty$
Oct
16
answered Inequality involving partial sums of $\frac{|\sin{kx}|}{k}$
Oct
11
answered Functions satisfying $(b-a)f'(\tfrac{a+b}{2}) = f(b)- f(a)$
Oct
7
answered How prove this $f(a)\le f(b)$
Oct
2
answered How find this$\frac{1}{{{p}_{1}}}+\frac{1}{{{p}_{2}}}+…+\frac{1}{{{p}_{n}}}<10$
Sep
30
answered How prove this mathematical analysis by zorich from page 233
Sep
30
answered How to prove that there exists $g(x)$ such $\int_{0}^{1}g(x)dx\ge\frac{1}{2}\int_{0}^{1}f(x)dx$