Stack Exchange

Carlo Beenakker

Leiden, The Netherlands

http://ilorentz.org/beenakker

physicist at Leiden University
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Top Questions
35 votes

Correspondence between eigenvalue distributions of random unitary and random orthogonal matrices

pr.probability random-matrices haar-measure mp.mathematical-physics linear-algebra asked Aug 26 '12 at 10:42
mathoverflow.net

28 votes

Symbolic integration error

calculus-and-analysis bugs symbolic asked Sep 5 '14 at 12:06
mathematica.stackexchange.com

22 votes

Why did I learn to write the base of the logarithm differently from the rest of the world?

notation asked Feb 3 '17 at 12:52
hsm.stackexchange.com

20 votes

Implications of the disproof of the “climb-to-a-prime” conjecture

nt.number-theory prime-numbers asked Jun 9 '17 at 15:12
mathoverflow.net

15 votes

Symbolic sum of Stirling numbers gives wrong answer

bugs symbolic summation asked Oct 9 '15 at 12:25
mathematica.stackexchange.com

10 votes

Fourier transform inconsistency

bugs fourier-analysis singularity asked Sep 9 '16 at 16:05
mathematica.stackexchange.com

7 votes

Does the primality of the number of dimensions affect its properties?

prime-numbers asked Oct 1 '18 at 11:01
mathoverflow.net

7 votes

Why is $-\int_{-\infty}^\infty \log\left[1+2f'(x)(1-\cos\phi)\right]\,dx$ equal to $\phi^2$?

real-analysis ca.classical-analysis-and-odes integration asked Apr 17 '20 at 8:22
mathoverflow.net

6 votes

When was the first time that superconducting quasiparticles were called Majorana fermions?

soft-question terminology history superconductivity majorana-fermions asked Apr 10 '15 at 14:59
physics.stackexchange.com

6 votes

Series expansion gives incorrect result

bugs complex series-expansion asked Jan 10 '18 at 9:35
mathematica.stackexchange.com

1 2

Top Answers
121
How can a mathematician handle the pressure to discover something new?
mathoverflow.net

105
Are there any serious investigations of whether “mathematicians do their best work when they're young”?
mathoverflow.net

103
“Surprising” examples of Markov chains
mathoverflow.net

99
Should water at the scale of a cell feel more like tar?
mathoverflow.net

96
PhD dissertations that solve an established open problem
mathoverflow.net

89
What are some noteworthy “mic-drop” moments in math?
mathoverflow.net

84
What’s the etiquette on using diagrams that need color to be understood?
mathoverflow.net

83
The most outrageous (or ridiculous) conjectures in mathematics
mathoverflow.net

81
Is this differential identity known?
mathoverflow.net

77
How did “normal” come to mean “perpendicular”?
mathoverflow.net

74
Note rejected from arXiv: what to do next?
mathoverflow.net

73
Who is the “young student” André Weil is referring to in his letter from the prison?
mathoverflow.net

64
Is there a high level reason why the inverse square law of gravitation yields periodic orbits without precession?
mathoverflow.net

60
Is data science mathematically interesting?
mathoverflow.net

57
Research-only permanent positions worldwide
mathoverflow.net

57
J. H. C Whitehead (and his pig)
mathoverflow.net

53
Did Hilbert laugh?
mathoverflow.net

51
Why do bees create hexagonal cells ? (Mathematical reasons)
mathoverflow.net

50
What are good mathematical models for spider webs?
mathoverflow.net

49
Publishing mathematical coincidences
mathoverflow.net

49
Whence “homomorphism” and “homomorphic”?
mathoverflow.net

46
On critical reviews of Hawking's lecture “Gödel and the end of the universe”
mathoverflow.net

45
Hilbert's Hotel
mathoverflow.net

45
Mathematics of imaging the black hole
mathoverflow.net

44
Who discovered the surreals?
mathoverflow.net

44
Mathematically interesting screensavers
mathoverflow.net

44
On mathematical arguments against Quantum computing
mathoverflow.net

43
Is there any deep philosophy or intuition behind the similarity between $\pi/4$ and $e^{-\gamma}$?
mathoverflow.net

42
Why did Euler consider the zeta function?
mathoverflow.net

42
What percentage of published mathematics papers are correct?
mathoverflow.net

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