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Stefan Kohl's user avatar
Stefan Kohl's user avatar
Stefan Kohl's user avatar
Stefan Kohl
Moderator
  • Member for 13 years, 3 months
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Top posts

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121
Examples of unexpected mathematical images
Aug 11, 2014
75
Mathematical research published in the form of poems
Dec 29, 2013
52
Mathematical research in North Korea -- reference request
Jan 11, 2019
48
Transitivity on $\mathbb{N}_0$ -- a 42 problem
Jun 15, 2015
43
Can't one walk to infinity on the prime numbers with finitely many distinct affine steps?
May 13, 2018
39
PhD dissertations that solve an established open problem
May 20, 2018
39
Prime number races in 2 dimensions
Feb 1, 2013
38
Does the equation $241+2^{2s+1}=m^2$ have a solution?
Sep 27, 2015
34
Frequency of papers showing academic misconduct among the articles indexed by MathSciNet and Zentralblatt MATH
Apr 18, 2017
34
Are surjectivity and injectivity of polynomial functions from $\mathbb{Q}^n$ to $\mathbb{Q}$ algorithmically decidable?
Jul 29, 2013

Top Meta posts

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Why is "what is the difference between mathoverflow and math.stackexchange?" not prominently displayed?
45
News of potential interest to the MO community
45
Deletion of on-topic comment threads
40
Big list of feature requests and suggestions for a fantasy MO 3.0
35
Why all the negativity?