Reputation
497
Next privilege 500 Rep.
Access review queues
Badges
2 11
Impact
~7k people reached

  • 0 posts edited
  • 0 helpful flags
  • 64 votes cast
Oct
26
awarded  Popular Question
Apr
25
awarded  Nice Question
Sep
24
awarded  Autobiographer
Jul
2
awarded  Curious
May
28
awarded  Yearling
Mar
13
awarded  Popular Question
May
29
awarded  Yearling
Apr
29
comment Can one make the category of pairs of topological spaces a model category?
I just picked u the Hovey book. Thanks for the reference!
Apr
29
comment Can one make the category of pairs of topological spaces a model category?
I feared as much, ah well.
Apr
29
accepted Can one make the category of pairs of topological spaces a model category?
Apr
28
comment Can one make the category of pairs of topological spaces a model category?
That sounds interesting! Is there a good reference for that? Do you know what goes wrong if I restrict to subspaces or $A\to X$ a cofibration?
Apr
28
revised Can one make the category of pairs of topological spaces a model category?
added 8 characters in body
Apr
28
asked Can one make the category of pairs of topological spaces a model category?
Apr
28
comment A toolbox for algebraic topology
I think an AT wiki would be a wonderful thing, especially if it were more readable than nlab!
Apr
17
asked Is there a picture I should have in my head of rational homotopy equivalence?
Jan
4
accepted Finding a subspace disjoint from a union of subspaces
Jan
3
comment Finding a subspace disjoint from a union of subspaces
I'm afraid I don't know as many combinatorial algorithms as I probably should. How would you use inclusion-exclusion to calculate the subspace?
Jan
3
comment Finding a subspace disjoint from a union of subspaces
How sad. Can we do better if $N$ is small.
Jan
3
comment Finding a subspace disjoint from a union of subspaces
I want small $N$, and I added an edit to this effect.
Jan
3
revised Finding a subspace disjoint from a union of subspaces
added 81 characters in body