Skip to main content
MathOverflow
C.S.'s user avatar
C.S.'s user avatar
C.S.'s user avatar
C.S.
  • Member for 15 years, 1 month
  • Last seen this week
Profile Activity
Stats
4,795
reputation
886k
reached
35
answers
19
questions
Communities
View all
About

Our true needs are deeper – yet in our modern society most of us reflexively and relentlessly pursue wealth, consumer goods and admiration. We have learned from Perelman's mathematics. Perhaps we should also pause to reflect on ourselves and learn from Perelman's attitude towards life. : Bill Thurston

Badges
View all badges
7
gold badges
41
silver badges
49
bronze badges
Top tags
View all tags
20
Score
9
Posts
17
Posts %
13
Score
5
Posts
9
Posts %
13
Score
9
Posts
17
Posts %
12
Score
6
Posts
11
Posts %
11
Score
5
Posts
9
Posts %
10
Score
28
Posts
52
Posts %
Top posts
View all questions and answers
question
238
If $f$ is infinitely differentiable then $f$ coincides with a polynomial
Jul 31, 2010
answer
56
Not especially famous, long-open problems which anyone can understand
Jun 23, 2012
question
51
Function satisfying $f^{-1} =f'$
Jul 31, 2010
answer
49
Not especially famous, long-open problems which anyone can understand
Jun 22, 2012
answer
47
Counterexamples in algebra?
Jun 18, 2011
answer
35
Not especially famous, long-open problems which anyone can understand
Jun 23, 2012
answer
28
A good book of functional analysis
Aug 9, 2011
question
20
On a Conjecture of Schinzel and Sierpinski
Jan 29, 2011
question
19
Ramanujan's eccentric Integral formula
Jun 3, 2011
question
15
Example of a group which has $\text{SL}_{n}(\mathbb{Z})$ as the automorphism group
Sep 10, 2011
Top network posts
View all network posts
94
Recovering accidentally deleted files
23
How to show $\sum_{k=0}^{n}\binom{n+k}{k}\frac{1}{2^k}=2^{n}$
20
Can the group $\mathbb Z \times \mathbb Z$ be written as union of finitely many proper subgroups of it?
17
Prove: $\sin (\tan x) \geq {x}$
16
A few words in a coloured/grey background box