649 reputation
524
bio website math.mit.edu/~vinothn
location Boston
age 24
visits member for 4 years, 4 months
seen Apr 5 at 20:12
I'm currently a third year graduate student studying geometric representation theory at MIT.

Mar
3
awarded  Popular Question
Sep
30
accepted $A \otimes^L_B C$ computing the derived fiber product of schemes
Sep
29
comment $A \otimes^L_B C$ computing the derived fiber product of schemes
What do you mean by the "codimension of A"? Usually codimension is defined for a subscheme. Also - in this case, which vector bundle on $\mathfrak{g}$ will you pick?
Sep
23
comment $A \otimes^L_B C$ computing the derived fiber product of schemes
I understand what a flat module over a ring is but -- given a map $A \rightarrow B$ what does it mean for a sheaf of DG-algebras on $A$ to be flat over $B$? Thanks.
Sep
23
comment $A \otimes^L_B C$ computing the derived fiber product of schemes
Ah okay. But what is the precise definition of a "complete intersection subscheme"? Hartshorne doesn't have a definition either.
Sep
23
revised $A \otimes^L_B C$ computing the derived fiber product of schemes
added 14 characters in body
Sep
21
comment $A \otimes^L_B C$ computing the derived fiber product of schemes
Thanks - that makes sense! But for the example, $A=\tilde{\mathfrak{g}} \rightarrow \mathfrak{g}=B$ -- what does the corresponding sheaf of dg-algebras (ie. the Koszul complex) look like?
Sep
19
revised $A \otimes^L_B C$ computing the derived fiber product of schemes
deleted 1 characters in body; edited title
Sep
19
revised $A \otimes^L_B C$ computing the derived fiber product of schemes
deleted 11 characters in body
Sep
19
asked $A \otimes^L_B C$ computing the derived fiber product of schemes
Sep
16
awarded  Popular Question
Sep
11
accepted Orbits on the affine Grassmanian, and closure ordering
Sep
7
revised Orbits on the affine Grassmanian, and closure ordering
edited title
Sep
7
revised Orbits on the affine Grassmanian, and closure ordering
added 242 characters in body
Aug
28
asked Orbits on the affine Grassmanian, and closure ordering
Aug
28
accepted Koszul (Exterior/Symmetric) duality for a 1-dim vector space
Aug
27
asked Koszul (Exterior/Symmetric) duality for a 1-dim vector space
Aug
19
accepted Computing multiplication in the Ext (for a simple example)
Aug
8
comment Computing multiplication in the Ext (for a simple example)
Thanks! I had a look - but I couldn't find the specific part which talks about the product structures on Ext. Do you know which section it's in?
Aug
7
asked Computing multiplication in the Ext (for a simple example)