Scott Carter's user avatar
Scott Carter's user avatar
Scott Carter's user avatar
Scott Carter
  • Member for 14 years, 5 months
  • Last seen more than 1 year ago
14 votes
3 answers
573 views

Which closed orientable $4$-dimensional manifolds cannot be embedded in $6$-space?

6 votes
2 answers
356 views

Knotted projective planes and fake complex projective space

10 votes
2 answers
17k views

Beamer printout [closed]

8 votes
5 answers
1k views

Braided Monoidal 2-categories with duals

7 votes
0 answers
310 views

What is the historical connection between Zeeman's twist spinning and Fox's Examples?

4 votes
1 answer
353 views

Branched Coverings of the $4$-sphere branched along a knotted surface

16 votes
13 answers
4k views

Do you find your students are less competent in basic algebra and arithmetic, and, if so, do you believe that this is due to overuse of calculators at an early level? [closed]

7 votes
0 answers
357 views

Is the category of tangles that includes, X, Y, and Lambda a free Frobenius braided category?

4 votes
0 answers
531 views

Why are Lie Algebras/ Lie Groups so much like crossed modules, and not?