Karl Schwede's user avatar
Karl Schwede's user avatar
Karl Schwede's user avatar
Karl Schwede
  • Member for 12 years, 10 months
  • Last seen this week
67 votes

Is there a "geometric" intuition underlying the notion of normal varieties?

40 votes

Is primary decomposition still important?

34 votes
Accepted

What is the definition of exceptional divisor?

31 votes
Accepted

Why Cohen-Macaulay rings have become important in commutative algebra?

24 votes

Blackbox Theorems

23 votes

Is the blowup of a normal scheme necessarily normal?

21 votes
Accepted

What formal properties should resolution of singularities have?

21 votes
Accepted

How to define the canonical sheaf on singular varieties

19 votes

Examples of interesting false proofs

19 votes
Accepted

Cohen-Macaulay domain with non-Cohen-Macaulay normalization?

18 votes
Accepted

Frobenius splitting of Fano varieties

17 votes

Top cohomology of resolution of singularities

17 votes

Submitting papers “out of logical order” due to different review times or rejections

17 votes

A geometric reference for (affine) Gorenstein varieties and singularities

17 votes

What are some open problems in algebraic geometry?

16 votes

open but not affine subscheme?example?

16 votes
Accepted

Blow-up along a subscheme and along its associated reduced closed subscheme

15 votes

motivation for multiplier ideal sheaves

14 votes
Accepted

Obtaining non-normal varieties by pushout

14 votes

Is there an analog of Kodaira vanishing for singular varieties

14 votes

Life after Hartshorne (the book, not the person)...

14 votes

When will the pushforward of a structure sheaf still be a structure sheaf?

14 votes

Algebraic geometry examples

14 votes

What are some open problems in algebraic geometry?

14 votes
Accepted

Dualizing sheaf of reducible variety?

14 votes

A "geometric" insight into a proof of Krull intersection theorem?

14 votes
Accepted

When do blowups ''commute''?

13 votes

On Q-Cartier Divisors

13 votes

Blackbox Theorems

13 votes

When (if ever) disclose your identity as a reviewer?

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