Skip to main content
Graphic Design
Sayan's user avatar
Sayan's user avatar
Sayan's user avatar
Sayan
  • Member for 8 years, 5 months
  • Last seen more than 4 years ago
Profile Activity
Stats
101
reputation
60
reached
0
answers
1
question
Communities
View all
About

Hi there. This is Sayan. I am a Ph.D. student at Columbia University.

My main area of interest is Probability.

Badges
This user doesn’t have any gold badges yet.
This user doesn’t have any silver badges yet.
1
bronze badge
Top tags
0
Score
1
Posts
100
Posts %
0
Score
1
Posts
100
Posts %
Top posts
question
0
background sky of a photo: removing the darker color
Jun 19, 2016
Top network posts
View all network posts
26
$A=\frac{\mathbb{C}[X,Y]}{(X^2+Y^2-1)}$ is a PID.
11
How prove this $x^3+y^3+z^3+3\ge 2(x^2+y^2+z^2)$
10
$ f(x)\leq f(x+\frac{1}{n} )$ for all $x\in \mathbb{R}$ and $n\geq 1$ . Prove that $f$ is non-decreasing .
10
I overpaid the IRS. Can I ask for a refund or credit next year?
9
If $\operatorname{Ker} f$ is a $G_\delta$ set in $X$, then $f$ is continuous