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54321user
  • Member for 8 years, 7 months
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23 votes
2 answers
2k views

What are examples of D-modules that I should have in mind while learning the theory?

16 votes
1 answer
2k views

Where am I suppose to actually learn how to compute hypercohomology?

16 votes
2 answers
979 views

What is the motivation behind the characteristic variety of a D-module and what does it's geometry tell me about the D-module?

10 votes
1 answer
582 views

Is the $E_\infty$-structure on the cochain complex of a $K(G,n)$ readily understandable?

9 votes
2 answers
783 views

What is integration along the fibers in D-module theory?

8 votes
1 answer
652 views

Does an oriented $S^3$ fiber bundle admit the structure of a principal $SU(2)$-bundle?

7 votes
2 answers
721 views

What are some applications of virtual vector bundles?

7 votes
1 answer
457 views

How can I construct D-modules over projective space using explicit differential equations?

7 votes
0 answers
275 views

Is there a derived geometric interpretation of morse functions?

6 votes
1 answer
703 views

What tools can I use to compute the cohomology of the fibers of a Lefschetz Pencil?

4 votes
0 answers
326 views

Does hypercohomology of the Koszul complex compute sheaf cohomology?

4 votes
0 answers
225 views

Is there an analogue to the koszul complex for constructible sheaves?

4 votes
1 answer
254 views

Are there algorithmic tools for computing poincare residues?

4 votes
0 answers
195 views

How can I describe the monodromy of this variation of singular curves?

3 votes
1 answer
627 views

Can comma categories of small categories be understood as limits/colimits in $\textbf{Cat}$?

3 votes
1 answer
167 views

How can I determine the monodromy of this variation of mixed hodge structures?

3 votes
0 answers
223 views

How can I find the differential in the Serre spectral sequence for this sphere fibration?

3 votes
1 answer
273 views

Is there a notion of injective, projective, flat, dimension for a differential graded algebra?

3 votes
0 answers
265 views

Is there a spectral sequence for borel-moore homology associated to a whitney filtration?

3 votes
0 answers
405 views

Where should I look for computing the intersection homology of projective varieties?

2 votes
0 answers
215 views

What techniques are available for constructing D-modules over smooth projective varieties?

2 votes
1 answer
305 views

Where can I find a proof of identity of $H^1(X,T_X)$ and a quotient by the jacobian?

2 votes
1 answer
185 views

What is a non-example of and $(\infty,1)$-topos where disjointness fails?

2 votes
0 answers
217 views

What is the motivation behind the definition for a smooth differential graded category?

2 votes
1 answer
174 views

How can I compute the mixed hodge structure for three copies of $\mathbb{P}^1$ intersecting at one point?

0 votes
0 answers
149 views

Does the $\infty$-groupoid functor $\Pi$ commute with pushouts of nice spaces?

0 votes
1 answer
311 views

How can I show flatness for projective morphisms?

-1 votes
1 answer
440 views

How do I find the algebra representing the projective bundle of a direct sum of line bundles over a projective space?