Mathematics
Julian Rosen's user avatar
Julian Rosen's user avatar
Julian Rosen's user avatar
Julian Rosen
  • Member for 11 years, 6 months
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I like number theory and arithmetic geometry.

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All Questions Answers
Score Newest
answer
95
The $100$th derivative of $(x^2 + 1)/(x^3 - x)$
Aug 17, 2012
answer
59
Does $f(x) = f(2x)$ for all real $x$, imply that $f(x)$ is a constant function?
Apr 27, 2013
question
45
Distinguishing non-isomorphic groups with a group-theoretic property
Oct 9, 2020
answer
36
How to find $\lim\limits_{x\to0}\frac{e^x-1-x}{x^2}$ without using l'Hopital's rule nor any series expansion?
Aug 18, 2012
answer
27
Infinite Series $\sum\limits_{n=1}^\infty\frac{(H_n)^2}{n^3}$
Nov 15, 2013
answer
25
Closed form for ${\large\int}_0^1\frac{\ln(1-x)\,\ln(1+x)\,\ln(1+2x)}{1+2x}dx$
Sep 16, 2014
answer
23
Why is the constant term of $(1+x+y+xy)^n$ equal to $\frac{1}{2}\binom{2n}{n}$？
Apr 13, 2020
answer
22
Random point uniform on a sphere
Aug 22, 2012
answer
21
Recreational math: If $f(f(x))=e^x$, bound the integral $\int_0^1 f(x)dx$
May 16, 2018
answer
19
Challenging integral: Evaluate $\int_0^1\frac{\ln^3(1-x)\operatorname{Li}_3(x)}{x}dx$
Aug 18, 2019
Top network posts
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81
Sophisticated treatments of topics in school mathematics
56
Chasing pirates
43
What are reasons to believe that e is not a period?
40
A burning sensation
39
Three mathematicians are forever in Prison

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