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Apr
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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 |