User Sean Tilson

76 votes

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how to read a mathematical paper?

answered Dec 8, 2010 at 1:32

29 votes

What is the difference between topological and metric spaces?

answered Feb 10, 2011 at 6:16

15 votes

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$\pi_{1}({\mathbb R}^{2} - {\mathbb Q}^{2})$ is uncountable

answered Jan 10, 2011 at 5:19

15 votes

Algebraic structure cheat sheet anyone?

answered Dec 2, 2010 at 1:11

13 votes

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Trivial line bundles

answered Jan 9, 2011 at 17:27

12 votes

When to learn category theory?

answered Feb 9, 2011 at 15:11

11 votes

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Vector Bundles Over a Manifold

answered Jan 25, 2011 at 4:29

11 votes

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Applications for Homology

answered Dec 9, 2010 at 14:57

10 votes

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Homology and Euler characteristics of the classical Lie groups

answered Dec 6, 2010 at 18:58

9 votes

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Geometry or Topology

answered Dec 10, 2010 at 1:40

9 votes

Reference for spectral sequences

answered Dec 2, 2010 at 6:06

9 votes

Meaning of relative homology

answered Dec 27, 2010 at 17:28

9 votes

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Why is Top a model category?

answered Dec 2, 2010 at 3:18

8 votes

Which cohomology theories have a formula $\langle \Omega,\text d \omega \rangle = \langle \partial \Omega,\omega \rangle$?

answered Jan 13, 2012 at 22:17

7 votes

Why does a tensor algebra not contain any zero divisors?

answered Oct 24, 2011 at 0:17

7 votes

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Chromatic Filtration of Burnside Ring

answered Dec 10, 2010 at 3:56

7 votes

Degree of maps on the sphere

answered Jan 3, 2011 at 22:43

7 votes

Minimal non-cyclic groups other than the Klein four groups

answered Jan 11, 2011 at 15:02

6 votes

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statistics - moment-generating function

answered Dec 9, 2010 at 1:30

6 votes

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What's the map $BU \times \mathbb{Z} \to \prod K(\mathbb{Z},n)$ representing the total Chern class?

answered Dec 17, 2010 at 16:44

5 votes

How should I think about what it means for a manifold to be orientable?

answered Dec 27, 2010 at 17:13

5 votes

Why is the cohomology of a $K(G,1)$ group cohomology?

answered Dec 2, 2010 at 3:32

5 votes

Choosing a text for a First Course in Topology

answered Aug 5, 2010 at 5:41

5 votes

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What restricts the number of cohomologies?

answered Jan 6, 2012 at 5:20

5 votes

Good Reference for Spanier-Whitehead duality?

answered May 2, 2012 at 20:26

5 votes

Two CW complexes with isomorphic homotopy groups and homology, yet not homotopy equivalent

answered Dec 6, 2011 at 22:04

5 votes

What is the easiest way to see $\langle \Sigma X, Y \rangle\cong \langle X,\Omega Y\rangle $

answered Sep 24, 2012 at 4:13

4 votes

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What is an element of a rng called which is not the product of any elements?

answered Jan 27, 2012 at 15:38

4 votes

The definition of a complex oriented cohomology theory

answered Feb 17, 2012 at 5:52

4 votes

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What are the best known results for the stable homotopy groups of spheres?

answered Nov 26, 2011 at 22:06

Stack Exchange Network

54 Answers

how to read a mathematical paper?

What is the difference between topological and metric spaces?

$\pi_{1}({\mathbb R}^{2} - {\mathbb Q}^{2})$ is uncountable

Algebraic structure cheat sheet anyone?

Trivial line bundles

When to learn category theory?

Vector Bundles Over a Manifold

Applications for Homology

Homology and Euler characteristics of the classical Lie groups

Geometry or Topology

Reference for spectral sequences

Meaning of relative homology

Why is Top a model category?

Which cohomology theories have a formula $\langle \Omega,\text d \omega \rangle = \langle \partial \Omega,\omega \rangle$?

Why does a tensor algebra not contain any zero divisors?

Chromatic Filtration of Burnside Ring

Degree of maps on the sphere

Minimal non-cyclic groups other than the Klein four groups

statistics - moment-generating function

What's the map $BU \times \mathbb{Z} \to \prod K(\mathbb{Z},n)$ representing the total Chern class?

How should I think about what it means for a manifold to be orientable?

Why is the cohomology of a $K(G,1)$ group cohomology?

Choosing a text for a First Course in Topology

What restricts the number of cohomologies?

Good Reference for Spanier-Whitehead duality?

Two CW complexes with isomorphic homotopy groups and homology, yet not homotopy equivalent

What is the easiest way to see $\langle \Sigma X, Y \rangle\cong \langle X,\Omega Y\rangle $

What is an element of a rng called which is not the product of any elements?

The definition of a complex oriented cohomology theory

What are the best known results for the stable homotopy groups of spheres?