User Jim Conant

55 votes

How misleading is it to regard $\frac{dy}{dx}$ as a fraction?

answered Aug 23, 2011 at 15:11

48 votes

Are there examples of non-orientable manifolds in nature?

answered Nov 12, 2010 at 15:22

39 votes

What makes four dimensions special?

answered Nov 28, 2010 at 9:02

34 votes

Examples of interesting false proofs

answered Jan 10, 2019 at 8:04

28 votes

What if Current Foundations of Mathematics are Inconsistent?

answered Oct 3, 2010 at 13:50

15 votes

Intuition behind Alexander duality

answered Oct 13, 2010 at 13:14

14 votes

Accepted

Borromean braids

answered Nov 11, 2010 at 10:23

13 votes

Outer automorphisms of free groups into bigger free groups

answered Dec 16, 2010 at 0:48

13 votes

Whitehead doubles of any knots

answered Feb 10, 2011 at 11:51

12 votes

Are there graph models for other moduli spaces?

answered Dec 18, 2010 at 18:33

12 votes

Homology of Covering Spaces

answered Apr 18, 2012 at 22:24

10 votes

Accepted

Knot theory without planar diagrams?

answered Aug 6, 2012 at 18:56

9 votes

Accepted

Vassilliev invariants of knots and their cables

answered Feb 28, 2013 at 15:02

9 votes

Computing homology of very large posets

answered Oct 21, 2010 at 11:00

9 votes

Resubmitting a paper

answered Dec 2, 2011 at 14:39

8 votes

Textbook recommendations for undergraduate proof-writing class

answered Apr 22, 2011 at 18:03

7 votes

Accepted

Is the Hopf link a Brunnian link?

answered Oct 1, 2010 at 11:51

7 votes

What does the word "symplectic" mean?

answered Nov 7, 2010 at 11:50

7 votes

Using slides in math classroom

answered Nov 5, 2011 at 2:04

7 votes

Accepted

Is there a torsion element in the homology cylinder group?

answered May 11, 2012 at 14:04

7 votes

Accepted

rational cohomology of symmetric groups

answered Nov 18, 2015 at 13:12

7 votes

Accepted

Linking number a complete invariant of link homotopy

answered May 20, 2017 at 15:17

6 votes

Not especially famous, long-open problems which anyone can understand

answered Dec 18, 2014 at 1:46

6 votes

Ternary "Lie structure"

answered May 10, 2012 at 17:44

6 votes

Accepted

Boundary links and ribbon links.

answered Dec 18, 2010 at 2:01

6 votes

Examples of great mathematical writing

answered May 15, 2011 at 20:18

5 votes

Fundamental groups of surfaces

answered Jun 19, 2011 at 1:27

5 votes

Nice proofs of the Poincaré–Birkhoff–Witt theorem

answered Feb 11, 2012 at 4:11

5 votes

What are some examples of ingenious, unexpected constructions?

answered Mar 14, 2012 at 17:21

5 votes

Accepted

When do submanifolds lie in the same homology class?

answered Oct 3, 2010 at 14:45

Stack Exchange Network

53 Answers

How misleading is it to regard $\frac{dy}{dx}$ as a fraction?

Are there examples of non-orientable manifolds in nature?

What makes four dimensions special?

Examples of interesting false proofs

What if Current Foundations of Mathematics are Inconsistent?

Intuition behind Alexander duality

Borromean braids

Outer automorphisms of free groups into bigger free groups

Whitehead doubles of any knots

Are there graph models for other moduli spaces?

Homology of Covering Spaces

Knot theory without planar diagrams?

Vassilliev invariants of knots and their cables

Computing homology of very large posets

Resubmitting a paper

Textbook recommendations for undergraduate proof-writing class

Is the Hopf link a Brunnian link?

What does the word "symplectic" mean?

Using slides in math classroom

Is there a torsion element in the homology cylinder group?

rational cohomology of symmetric groups

Linking number a complete invariant of link homotopy

Not especially famous, long-open problems which anyone can understand

Ternary "Lie structure"

Boundary links and ribbon links.

Examples of great mathematical writing

Fundamental groups of surfaces

Nice proofs of the Poincaré–Birkhoff–Witt theorem

What are some examples of ingenious, unexpected constructions?

When do submanifolds lie in the same homology class?