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Mathematics
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Sil
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I graduated in mathematics sometime in a past, now I work as a software engineer.

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130
Visually stunning math concepts which are easy to explain
Mar 11, 2016
29
If $n$ is square-free and $n+1 \mid \sigma(n)$, is $n$ a prime?
Nov 14, 2022
24
Solving two-dimensional recurrence relation $a_{i,\ j}\ =\ a_{i,\ j-1}\ +\ a_{i-1,\ j-1}$
Dec 19, 2016
24
Prove $4-\sqrt{2}-\sqrt[3]{3}-\sqrt[5]{5} \gt 0$
Dec 30, 2016
22
Proof that a group is abelian if every square is the identity.
Dec 18, 2016
21
Given $P(x)=x^{4}-4x^{3}+12x^{2}-24x+24,$ then $P(x)=|P(x)|$ for all real $x$
Oct 23, 2016
21
Divisibility property for sequence $a_{n+2}=-2(n-1)(n+3)a_n-(2n+3)a_{n+1}$
Apr 14, 2018
18
"Twin binomial coefficient conjecture": There are no binomial coefficients that differ by $2$, excluding $\binom{n}{1}$ and $\binom{n}{n-1}$.
Nov 20, 2023
16
Continued fraction for Apéry's constant conjectured by The Ramanujan Machine
Apr 20, 2021
15
For what $n$ can we find a degree $\leq n-2$ polynomial such that $P(i) \in \{0 , 1 \}$ for $i \in [n]$, but not all identical.
Feb 27, 2023
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Switch to MathJax version 3?
25
How to properly handle Maple related questions?
15
Mathematics new site theme is live
13
What are the current statistics of migrations to other sites?
8
List of Generalisations of Common Questions
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Why do polynomials with coefficients $0,1$ like to have only factors with $0,1$ coefficients?
22
Next math renderer MathJax v3 versus KaTeX?
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Proposals for polymath projects