bio | website | |
---|---|---|
location | Cambridge, MA | |
age | 25 | |
visits | member for | 4 years, 1 month |
seen | Aug 18 at 4:10 | |
stats | profile views | 1,389 |
I'm interested in topology, algebraic geometry and number theory.
Aug 13 |
revised |
When do limits and colimits of infinity-categories commute?
added some info on the case I'm interested in |
Aug 13 |
comment |
When do limits and colimits of infinity-categories commute?
@Adeel Thanks, but neither of these is quite what I need. I need index diagrams that are more complicated than just products (so 5.5.8.11 isn't enough), and 5.3.3.3 is only about limits/colimits in the category of spaces (I need the category of stable infty-categories). However, there is something about my case that's not that far from the category of spaces, and I'm editing the question accordingly. |
Aug 13 |
asked | When do limits and colimits of infinity-categories commute? |
Aug 7 |
revised |
Components of a Fiber Product
earlier statement was false. Salvaged it a little. |
Aug 7 |
comment |
Components of a Fiber Product
Sorry! The fact that $f|_{I^n_X}$ is the identity on the first $r$ coordinates doesn't imply that its image is $I^r\times U$. (@user52824, the incorrect arguments I gave are in fact local). |
Aug 7 |
comment |
Is there a finitely presented group with infinite homology over $\mathbb{Q}$?
Good to know. Thanks! |
Aug 7 |
comment |
Is there a finitely presented group with infinite homology over $\mathbb{Q}$?
@Alex: I thought any group homology of a finitely presented group is finite-dimensional. Are there examples where $H_2$ isn't? And yes, "infinite" means infinite-dimensional |
Aug 7 |
accepted | Is there a finitely presented group with infinite homology over $\mathbb{Q}$? |
Aug 7 |
asked | Is there a finitely presented group with infinite homology over $\mathbb{Q}$? |
Aug 7 |
answered | Components of a Fiber Product |
Jul 2 |
awarded | Curious |
Jun 26 |
awarded | Yearling |
May 15 |
awarded | Nice Question |
May 14 |
comment |
What is the coefficient ring of algebraic K theory of the discrete $\mathbb{C}$?
There are probably no modifications necessary in this case - thanks. And I'm interested in the torsion-free part, so fine with taking coefficients in any characteristic-zero field. Edited question accordingly. |
May 14 |
revised |
What is the coefficient ring of algebraic K theory of the discrete $\mathbb{C}$?
removed some parentheticals, added that only interested in torsion-free part |
May 13 |
asked | What is the coefficient ring of algebraic K theory of the discrete $\mathbb{C}$? |
Jun 26 |
awarded | Yearling |
May 10 |
awarded | Nice Answer |
Apr 29 |
asked | A nice rigid analytic model for local systems over an elliptic curve? |
Apr 24 |
comment |
What is a higher derived constructible sheaf
@David So it sounds like you're saying (in the algebraic case), that the 'etale topos contains all the topology of a manifold up to some sort of profinite completion, and higher-category analogues of locally constant (resp. constructible) sheaves are well-approximated by sheaves on this topos on the one hand, and therefore by D-modules on the other hand. Is this correct? |