MathOverflow
FFjet's user avatar
FFjet's user avatar
FFjet's user avatar
FFjet
  • Member for 5 years, 4 months
  • Last seen this week
Profile Activity
Stats
282
reputation
3k
reached
0
answers
5
questions
Communities
View all
About

I am now studying mathematics.

Interested in a lot of things, such as maths, physics and music.

Badges
View all badges
This user doesn’t have any gold badges yet.
1
silver badge
10
bronze badges
Top tags
View all tags
0
Score
2
Posts
40
Posts %
0
Score
2
Posts
40
Posts %
0
Score
2
Posts
40
Posts %
0
Score
1
Posts
20
Posts %
0
Score
1
Posts
20
Posts %
0
Score
1
Posts
20
Posts %
Top posts
question
11
Prove/disprove $(\int_{0}^{2 \pi} \!\!\cos f(x) d x)^{2}+(\int_{0}^{2 \pi}\!\!\! \sqrt{(f'(x))^{2}+\sin ^{2} f(x)}dx)^{2}\ge 4\pi^{2}$
Jan 21, 2021
question
7
Ramanujan's Master Formula: A proof and relation to umbral calculus
Dec 21, 2020
question
5
Algebra/Algebraic geometry in statistical mechanics
Mar 9
question
1
Proving that $m\leq 4$ when $\sqrt{a+\sqrt{b}+\sqrt{c}}=\sum_{i=1}^m \sqrt{d_i}$ with each $d_i/d_j$ non-square
Dec 18, 2020
question
1
Irreducibility of $\frac{x^{n+1}-(n+1) x+n}{(x-1)^2}$ [duplicate]
Dec 21, 2020
Top network posts
View all network posts
56
Prove/disprove $(\int_0^{2 \pi} \!\!\cos f(x) \, d x)^2+(\int_0^{2 \pi}\!\!\! \sqrt{(f'(x))^2+\sin ^2 f(x)} \, dx)^2\ge 4\pi^2$
24
Existence of $A$ such that $ \lim_{x\to\infty}\operatorname{poly}(x) e^{-x} \sum_{n\in A} \frac{x^n}{n!}=1 $
18
Prove the determinant is $0$
11
How to calculate $\prod\limits_{p}\frac{p^2+1}{p^2-1}$?
10
Asymptotic behavior of number of triples $i,j,k\le n$ with pairwise bounded least common multiples each $\le n$.