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earned this badge 20 times.
Are all Galois cohomology groups also étale cohomology groups?
Awarded Apr 24, 2023 at 20:06
Does S^6 have the structure of an algebraic variety?
Awarded Mar 6, 2023 at 20:16
Etale cohomology with coefficients in the integers
Awarded Jun 21, 2022 at 15:30
Vector bundles on $\mathbb{P}^1\times\mathbb{P}^1$
Awarded Jun 15, 2022 at 11:48
Major mathematical advances past age fifty
Awarded May 27, 2022 at 5:35
In what sense is the étale topology equivalent to the Euclidean topology?
Awarded Jul 31, 2018 at 18:05
Are non-algebraic stacks useful in algebraic geometry?
Awarded Oct 16, 2017 at 21:22
When and how is it appropriate for an undergraduate to email a professor out of the blue?
Awarded Apr 28, 2017 at 21:31
Kunneth formula for sheaf cohomology of varieties
Awarded Apr 6, 2017 at 0:41
Does a "composite field" always exist?
Awarded Oct 7, 2014 at 13:46
How to refer to a “theorem” that you have shown to be wrong
Awarded Aug 26, 2014 at 17:53
$\mathbb{P}^n$ is simply connected
Awarded May 12, 2014 at 3:10
what mistakes did the Italian algebraic geometers actually make?
Awarded Apr 3, 2013 at 13:20
Mathematically mature way to think about Mayer–Vietoris
Awarded Jul 23, 2012 at 4:05
If you went into a coma now and woke in twenty years time what would be your first post on MO?
Awarded Apr 23, 2012 at 8:05
An algebraic vector bundle is trivialized by open sets. How many does one need?
Awarded Feb 21, 2012 at 23:20
A book you would like to write
Awarded Jul 7, 2011 at 9:20
When should a supervisor be a co-author?
Awarded Mar 4, 2011 at 23:20
Examples of interesting false proofs
Awarded Aug 28, 2010 at 23:35
Profinite groups as étale fundamental groups
Awarded Jul 14, 2010 at 7:20

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