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Mathematics
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Sayan's user avatar
Sayan's user avatar
Sayan
  • Member for 9 years, 10 months
  • Last seen more than a week ago
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Hi there. This is Sayan. My main area of interest is Probability.

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25
$A=\frac{\mathbb{C}[X,Y]}{(X^2+Y^2-1)}$ is a PID.
Aug 31, 2017
11
How prove this $x^3+y^3+z^3+3\ge 2(x^2+y^2+z^2)$
Nov 2, 2014
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 .
May 10, 2017
9
If $\operatorname{Ker} f$ is a $G_\delta$ set in $X$, then $f$ is continuous
Sep 11, 2017
8
Limit $\lim_{n\to\infty}\sum_{k=0}^n\binom nk\frac{3k}{2^n(n+3k)}$
Oct 14, 2016
7
$\frac{a_{max}}{\sum a_i} \to 0$: Proof or Counterexample
Nov 28, 2019
7
$\{X_n\}$ are iid random variables with symmetric distribution
Nov 11, 2014
6
A short exact sequence with $M=M_1 \oplus M_2$ that does not split
Aug 9, 2017
5
Find all odd functions $f: \mathbb{R} \to \mathbb{R}$ satisfying $f(t+1)=f(t)+1$ and $f\left(\frac{1}{t}\right)=\frac{1}{t^2}f(t)$
Nov 15, 2014
5
Can you help me with this Markov Chain question?
Feb 15, 2015
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10
I overpaid the IRS. Can I ask for a refund or credit next year?
6
What kind of data is best shown in a rose diagram?
6
Aligning tikz picture in equation
5
How do you search for related articles?