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Fredrik Meyer's user avatar
Fredrik Meyer's user avatar
Fredrik Meyer's user avatar
Fredrik Meyer
  • Member for 13 years, 7 months
  • Last seen more than a month ago
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I have a PhD in algebraic geometry. Currently working as a software consultant. I sometimes blog at https://wwww.fredrikmeyer.net/.

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87
What is the Tor functor?
Jan 4, 2011
54
Famous papers in algebraic geometry
Jun 20, 2012
48
Is there a commutative operation for which the inverse of the operation is also commutative?
Feb 12, 2015
34
Why is $Q[\pi]$ not a field?
Oct 31, 2012
27
What is the result of $\infty - \infty$?
Aug 30, 2011
25
In an additive category, why is finite products the same as finite coproducts?
Mar 5, 2011
24
What's the difference between the automorphism and isomorphism of graph?
May 11, 2014
24
Irrationality proofs not by contradiction
Feb 5, 2011
23
Why is every abelian group the direct limit of its finitely generated subgroups?
Jan 31, 2011
23
How to pick a thesis advisor?
Feb 14, 2011
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Old books still used
7
About shorthand \frac