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Mathematics
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user75619
  • Member for 13 years
  • Last seen more than 3 years ago
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Top posts

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13
Divisibility of binomial coefficient by prime power - Kummer's theorem
Dec 16, 2013
12
Prove that $\sum\limits_{i=0}^{k} p^{2i}$ ($p$ is prime) is never a perfect square
May 2, 2013
10
Find (recursive formulas for) $\sum_{k=1}^n\lfloor k\varphi\rfloor^2$ and/or $\sum_{k=1}^nk\lfloor k\varphi\rfloor$
Nov 9, 2017
7
Why is an algebraic field defined with $+ - * /$ rather than other operations?
Nov 1, 2013
6
What is AM-CM inequality?
Jul 27, 2019
5
Find $\sum_{k=1}^nk\lfloor k\varphi\rfloor$, where $\varphi$ is golden ratio
Nov 8, 2017
4
Proofs from the Book - need quick explanation
Nov 22, 2013
3
Linear relation inside of a triangle
Dec 25, 2018
3
IMO 2013, Problem C8
Dec 25, 2018
2
IMO 2019 Problem N5 Solution 2
Nov 22, 2020

Top network posts

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23
Why are there so few impeachments in western democracies and so many votes of no confidence?
9
How does America prevent deals in dollars between the third parties?
9
Is much of what the US federal government does unconstitutional?
7
What is the purpose of “a” in these sentences if not *and*
7
Meaning of "тренироваться на кошечках"