417 reputation
17
bio website
location Stanford CA
age 23
visits member for 1 year, 10 months
seen Mar 18 at 22:17
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
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
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.