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Mathematics
Mark Wildon's user avatar
Mark Wildon's user avatar
Mark Wildon's user avatar
Mark Wildon
  • Member for 11 years, 3 months
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14
How to prove there exists $c$ such $f(c)f'(c)+f''(c)=0$
Dec 1, 2013
12
What are the one-parameter subgroups of GL?
Jun 6, 2014
8
Combinatorial proof that the exponential and logarithmic functions are inverse, the other way around
Aug 18, 2019
8
Decomposition of Permutation Representation
Feb 26, 2014
8
Roots of a polynomial whose coefficients are ratios of binomial coefficients
May 16, 2015
7
Why does induction have to be an axiom?
Jun 12, 2018
6
Proving that every set $A \subset \Bbb N$ of size $n$ contains a subset $B \subset A$ with $n | \sum_{b \in B} b$
Mar 30, 2013
6
Is $every$ prime factor of $\frac{n^{163}-1}{n-1}$ either $163$ or $1\;\text{mod}\;163$?
Apr 2, 2016
5
Is it true that if $f_{n}\rightarrow f$ uniformly converges then $f^{\prime}_{n}\rightarrow f^{\prime}$?
Jan 16, 2016
5
Show that there is no linear transformation $T: R^2 \rightarrow R^2$ such that $T (1, π) = (0, 1)$, , $T (e, −π) = (1, 1)$ and $T (1, 0) = (2, 3)$.
Nov 17, 2020
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58
Important formulas in combinatorics
44
Ramanujan's Incorrect formula
43
Alternating sum of square roots of binomial coefficients
37
Impressive common misleading interpretations in statistics to make students aware of
31
Is the matrix $\left({2m\choose 2j-i}\right)_{i,j=1}^{2m-1}$ nonsingular?