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Paul Siegel's user avatar
Paul Siegel's user avatar
Paul Siegel's user avatar
Paul Siegel
  • Member for 14 years, 9 months
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About

Practitioner of data science and machine learning, currently working at Turing labs.

Former academic in mathematics, focusing on operator K-theory, geometry, and topology. Institutions: University of Michigan (B.S.), Penn State (PhD), Columbia University (postdoc).

I have a blog, though I don't update it enough.

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Top posts
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question
256
Why worry about the axiom of choice?
Apr 29, 2010
question
228
John Nash's Mathematical Legacy
May 24, 2015
question
137
Is there an underlying explanation for the magical powers of the Schwarzian derivative?
Sep 8, 2010
answer
135
Why should one still teach Riemann integration?
Jan 21, 2011
question
115
Quick proofs of hard theorems
May 16, 2010
question
102
Is there an analogue of curvature in algebraic geometry?
Mar 25, 2010
question
74
Can analysis detect torsion in cohomology?
Apr 25, 2010
answer
74
Replication crisis in mathematics
Sep 5, 2020
question
69
The main theorems of category theory and their applications
Dec 14, 2011
answer
67
Quick proofs of hard theorems
May 16, 2010
Top Meta posts
1
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24
MO "memorial" questions
17
What do we mean by welcoming when we're a site aimed at researchers?
16
Questions, answers, comments or discussions on aspects of politics relevant to mathematicians on MathOverflow (main or meta)
14
MathOverflow policymaking and transparency
11
Why all the negativity?
Top network posts
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79
What do modern-day analysts actually do?
73
Why is the tensor product important when we already have direct and semidirect products?
44
Is there a naive proof that $x - \frac{x^3}{3!} + \frac{x^5}{5!} - \ldots$ has period $2\pi$?
43
Which polynomials are characteristic polynomials of a symmetric matrix?
43
Mind-blowing mathematics experiments