182

Answers
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5
Mathematical habits of thought and action which would be of use to non-mathematicians
5
Galois Groups vs. Fundamental Groups
37
Motivation for algebraic K-theory?
7
Proofs of Bott periodicity
12
“Understanding” Gal(\bar Q/Q)
7
Why are spectral sequences so ubiquitous?
8
Spectral sequences: opening the black box slowly with an example
15
How has modern algebraic geometry affected other areas of math?
17
Explanation for the Chern character
77
Is R^3 the square of some topological space?
8
Counterexamples in algebraic topology?
13
Intuition about the cotangent complex?
10
Which of Quillen’s Papers Should I read?
8
Book on Hochschild (co)homology
26
What does actually being a CW-complex provide in algebraic topology?
13
Why are free groups residually finite?
11
Cubical vs. simplicial singular homology
14
What are the uses of the homotopy groups of spheres?
9
Why does one think to Steenrod squares and powers?
23
Non-examples of model structures, that fail for subtle/surprising reasons?
7
Simplicial objects
6
triangulated vs. dg/A-infinity
4
The core question of topology
14
What is a square root of a line bundle?
19
Fundamental group of the line with the double origin.
9
Can we count isogeny classes of abelian varieties?
18
Motivation/interpretation for Quillen’s Q-construction?
18
Does homology detect chain homotopy equivalence?
19
Topological Langlands?
15
Subgroups of free abelian groups are free: a topological proof?
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