bio | website | math.northwestern.edu/… |
---|---|---|
location | Seattle, WA | |
age | 22 | |
visits | member for | 4 years, 4 months |
seen | 17 hours ago | |
stats | profile views | 4,292 |
Graduate student at Northwestern.
Feel free to email me at
dwilson [at] u. northwestern. edu
:)
Oct 19 |
comment |
Do the algebras for a $\infty$-monad form a stable $\infty$-category?
On the other hand, maybe the OPs assumptions on $T$ will force the forgetful functor to preserve finite coproducts... since the forgetful functor preserves sifted colimits, this should give you the preservation of colimits that you're after. (If it works it will probably work under the weaker assumption that $T$ preserves coproducts.) |
Oct 19 |
comment |
Do the algebras for a $\infty$-monad form a stable $\infty$-category?
Alg_T(C) is certainly not equivalent to its image in C! The maps are not the same. |
Oct 11 |
answered | Steenrod operations in algebraic geometry |
Oct 10 |
awarded | Popular Question |
Oct 9 |
comment |
Number of minimal models of a surface
In this case the minimal model is determined by a rank 2 vector bundle on a curve of genus $H^1(\mathcal{O}_X)$, up to possible twist by a line bundle. I don't know off-hand how large this is... I believe for elliptic curves there's only countably many such things (see Atiyah's paper on the subject). |
Sep 19 |
comment |
Letter from Grothendieck to Tate on “crystals”
although it looks like the top of every page is missing a line... which is unfortunate. |
Sep 19 |
comment |
Letter from Grothendieck to Tate on “crystals”
weird... it works now. Maybe I had a bad internet connection, or the site was having trouble earlier. Thank you! |
Sep 18 |
comment |
Letter from Grothendieck to Tate on “crystals”
Did you ever end up writing up the letter? The link in your post doesn't seem to be working, and I can't find the letter elsewhere by googling. |
Sep 5 |
comment |
$H^4(BG,\mathbb Z)$ torsion free for $G$ a connected Lie group
but that's perhaps just as computational, and only covers the simply-connected case. |
Sep 5 |
comment |
$H^4(BG,\mathbb Z)$ torsion free for $G$ a connected Lie group
If $G$ is simply connected then $\pi_i(G)$ is torsion-free for $i<4$ since $\pi_2$ of a Lie group is zero and $\pi_3$ is always torsion-free. Thus $\pi_i(BG)$ is torsion-free for $i\le 4$ and the result follows from mod C Hurewicz. |
Aug 23 |
comment |
Morava $K(n)$'s are not $E_{\infty}$
At the prime 2 I don't even think they're homotopy commutative. In general they're probably not more than like... E_2. I don't know a reference... maybe Ravenel's orange book? |
Jul 15 |
awarded | Informed |
Jul 4 |
comment |
Mapping complexes in the simplicial localization of the category of manifolds
Oh dear you're right! My argument didn't make any sense- I think I was assuming something absolutely absurd in my head... like that $Mfld[W^{-1}]$ is a full subcategory of $Mfld$. hehe. doy... |
Jul 4 |
revised |
Mapping complexes in the simplicial localization of the category of manifolds
added 137 characters in body |
Jul 4 |
answered | Mapping complexes in the simplicial localization of the category of manifolds |
Jul 2 |
awarded | Curious |
Jun 23 |
awarded | Great Question |
Jun 23 |
awarded | Famous Question |
Jun 21 |
awarded | Yearling |
Jun 18 |
awarded | Popular Question |