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Daniel Barter's user avatar
Daniel Barter's user avatar
Daniel Barter's user avatar
Daniel Barter
  • Member for 15 years, 9 months
  • Last seen more than a month ago
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Top posts

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49
Nontrivial theorems with trivial proofs
Jun 20, 2010
28
Varieties as an introduction to algebraic geometry / How do professional algebraic geometers think about varieties
Oct 21, 2010
16
Under what circumstances do morphisms on the stalks of a sheaf induce a sheaf morphism
Jan 12, 2011
13
In an arbitrary abelian category, does chain complex homology commute with coproduct?
Sep 18, 2011
12
Tannakian Formalism for the Quaternions and Dihedral Group
Sep 29, 2017
11
The metric space associated to a measure space
Nov 4, 2011
10
Inverse Image as the left adjoint to pushforward
Apr 14, 2011
10
What are the most elegant proofs that you have learned from MO?
Jun 27, 2010
9
Factorial Rings and The Axiom of Choice
May 13, 2010
9
Connectedness and the real line
May 31, 2010

Top network posts

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78
Why should I care about adjoint functors
62
what is expected from a PhD student?
35
The characteristic and minimal polynomials of a companion matrix
35
When is the product of two quotient maps a quotient map?
34
Abelian categories and axiom (AB5)