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Top Questions
83
votes
What is the motivation for a vertex algebra?
mp.mathematical-physics
asked Feb 1, 2011 at 14:52
mathoverflow.net
54
votes
Nice proofs of the Poincaré–Birkhoff–Witt theorem
rt.representation-theory
lie-algebras
pbw-theorems
asked Feb 3, 2012 at 5:41
mathoverflow.net
28
votes
How were moduli spaces defined before functors?
ho.history-overview
ag.algebraic-geometry
moduli-spaces
asked Feb 9, 2011 at 21:38
mathoverflow.net
27
votes
What is an example of a presheaf P where P^+ is not a sheaf, only a separated presheaf?
sheaf-theory
asked Oct 15, 2009 at 17:12
mathoverflow.net
23
votes
Motivation/interpretation for Quillen's Q-construction?
algebraic-k-theory
asked Oct 18, 2009 at 5:48
mathoverflow.net
19
votes
Techniques for computing cup products in singular cohomology
at.algebraic-topology
cup-product
asked May 11, 2011 at 12:45
mathoverflow.net
12
votes
For which hypersurfaces in projective space does the complement admit an algebraic group structure?
ag.algebraic-geometry
asked Oct 18, 2009 at 2:56
mathoverflow.net
8
votes
Doing explicit computations with coordinate rings
ac.commutative-algebra
reference-request
ag.algebraic-geometry
normalization
asked Feb 20, 2011 at 1:18
mathoverflow.net
8
votes
Example of a measure-preserving system with dense orbits that is not ergodic
ds.dynamical-systems
ergodic-theory
asked Sep 1, 2011 at 18:35
mathoverflow.net
8
votes
Notes for Bott's 1963 lectures on Morse theory
reference-request
morse-theory
asked Dec 6, 2012 at 15:23
mathoverflow.net
1
2
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Top Answers
59
Examples of great mathematical writing
mathoverflow.net
41
Early two-author math papers
mathoverflow.net
26
What is convolution intuitively?
mathoverflow.net
18
Can I become a good mathematician?
mathoverflow.net
15
Good introductory references on algebraic stacks?
mathoverflow.net
10
Relationship between Hilbert schemes and deformation spaces
mathoverflow.net
10
What (if anything) happened to Intersection Homology?
mathoverflow.net
6
Is a submodule of the sheaf of sections of a smooth vector bundle necessarily finitely generated?
mathoverflow.net
6
Geometric meaning of small extensions ?
mathoverflow.net
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