Skip to main content
Mathematics
Oksana Gimmel's user avatar
Oksana Gimmel's user avatar
Oksana Gimmel's user avatar
Oksana Gimmel
  • Member for 11 years, 2 months
  • Last seen more than 7 years ago
Profile Activity
Stats
5,342
reputation
78k
reached
5
answers
12
questions
Communities
View all
About

My MathOverflow Profile

[email protected]

My hobbies are Ikebana and collecting open mathematical problems, especially ones with elementary formulation.

Badges
View all badges
3
gold badges
36
silver badges
38
bronze badges
Top tags
View all tags
56
Score
9
Posts
53
Posts %
56
Score
2
Posts
12
Posts %
19
Score
10
Posts
59
Posts %
0
Score
10
Posts
59
Posts %
0
Score
8
Posts
47
Posts %
0
Score
6
Posts
35
Posts %
Top posts
View all questions and answers
135
How to find ${\large\int}_0^1\frac{\ln^3(1+x)\ln x}x\mathrm dx$
Aug 24, 2014
52
Closed form for $\int_0^\infty\frac{\log\left(1+\frac{\pi^2}{4\,x}\right)}{e^{\sqrt{x}}-1}\mathrm dx$
May 19, 2013
37
Is any closed-form representation known for the sum $\sum\limits_{n=1}^{\infty}\frac{\mu(n)\log n}{n^2}$?
May 4, 2013
34
Integral $\int_0^1\frac{1-x^2+\left(1+x^2\right)\ln x}{\left(x+x^2\right)\ln^3x}dx$
Mar 9, 2014
33
Integral ${\large\int}_0^1\ln(1-x)\ln(1+x)\ln^2x\,dx$
Aug 31, 2014
31
A definite integral $\int_0^\infty\frac{2-\cos x}{\left(1+x^4\right)\,\left(5-4\cos x\right)}dx$
Sep 28, 2013
31
Integral $\int_0^\infty{_1F_2}\left(\begin{array}{c}\tfrac12\\1,\tfrac32\end{array}\middle|-x\right)\frac{dx}{1+4\,x}$
Nov 22, 2013
31
What is a closed form for ${\large\int}_0^1\frac{\ln^3(1+x)\,\ln^2x}xdx$?
Oct 14, 2014
28
Integral $\int_0^1\frac{\ln x}{x^2+1}\cdot\ln\left(\frac{3\,x^2+1}{x^2+3}\right)dx$
Nov 12, 2013
27
Integral ${\large\int}_0^{\pi/2}\arctan^2\!\left(\frac{\sin x}{\sqrt3+\cos x}\right)dx$
Dec 31, 2015
Top network posts
View all network posts
54
Irrationality of $ \pi e, \pi^{\pi}$ and $e^{\pi^2}$
44
Does an existence of large cardinals have implications in number theory or combinatorics?
41
Not especially famous, long-open problems which anyone can understand
40
How to create a delegate from a MethodInfo when method signature cannot be known beforehand?
20
Is this combination of generalized polygamma and dilogarithm actually zero? $\Im\;\psi^{(-2)}(1+i)+\frac1{4\pi}\text{Li}_2(e^{-2\pi})-\log\sqrt{2\pi}+\frac{5\pi}{24}+\frac12$