bio | website | |
---|---|---|
location | Stanford CA | |
age | 23 | |
visits | member for | 1 year, 10 months |
seen | Mar 18 at 22:17 | |
stats | profile views | 397 |
I'm an undergrad at Stanford, studying mathematics. I have been doing mostly coursework in algebra and topology, with a bit of other stuff thrown in. I am working on an undergraduate thesis on stable homotopy theory and the Adams Spectral Sequence. I am very grateful for any and all of the help I have gotten from the MO community, for the answers to my questions and input you give and for patience with my occasionally simple-minded questions. :)
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 |
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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 |
Jan 3 |
comment |
Finding a subspace disjoint from a union of subspaces
3Sat is probably a pretty easy way to do this, especially for Z/2, but boy is that unsatisfying. I'd rather have a nice lil algorithm. |
Jan 3 |
asked | Finding a subspace disjoint from a union of subspaces |
Nov 27 |
comment |
Computing Slim Extensions representing Ext
Good point, mt. These are clearly exact. |
Nov 27 |
comment |
Computing Slim Extensions representing Ext
I tried something like this but game up. I don't think these are still exact. Pick some 1-d $N$ which maps onto $k$, then $j^{-1}(N)=0$ but exactness, but $k\to 0$ is not injective. Am I missing something? |
Nov 26 |
comment |
Computing Slim Extensions representing Ext
To be honest, I didn't mean to write "graded algebra of finite type". I fixed the finite type part. |