26,499 reputation
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bio website math.washington.edu/~kovacs
location Seattle, WA
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visits member for 4 years, 2 months
seen Dec 4 at 5:42
I am an algebraic geometer.

Dec
4
revised Why does the (S2) property of a ring correspond to the Hartogs phenomenon?
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Dec
4
comment Recent ideas in Macaulayfication?
The cyclic cover is not birational to the original, so this would not give a Gorensteinification.
Nov
9
awarded  Nice Answer
Oct
27
awarded  Enlightened
Oct
27
awarded  Nice Answer
Sep
30
awarded  Explainer
Sep
29
awarded  Yearling
Sep
10
awarded  Nice Answer
Sep
6
comment Dimension of totally reflexive modules
For that matter, if $R$ is a domain and $M^{**}\neq 0$, then $\dim M=\dim R$.
Jul
18
answered Small birational maps and singularities of the pair
Jul
3
awarded  Popular Question
Jul
2
awarded  Curious
Jun
28
comment Vanishing theorems for pluri-canonical bundle
And if you look at the proof in the cited paper, the author first comments that this is a special case of Kollár's vanishing and immediately goes to saying that he will only prove it for the case $\dim X=\dim Y$. I think he called it GR vanishing mistakenly. It's not a big deal to me, but Kollár's vanishing is a lot harder than GR vanishing, so he should get the credit for it.
Jun
27
answered Vanishing theorems for pluri-canonical bundle
May
12
awarded  Nice Answer
May
10
comment Is the Kähler cone of a toric variety always simplicial?
Thanks!!!!!!!!!!
May
10
comment Is the Kähler cone of a toric variety always simplicial?
Could you tell me the definition of a simplicial cone? Thanks
Apr
17
comment Degree and quasi projective family
Why can't you take the closure $\bar V$ of V in $\mathbb P^n\times \mathbb P^m$ and apply your argument in the projective case? It seems to me that $\deg V_p\leq \deg (\bar V)_p$, so this should be OK.
Apr
10
answered A covering lemma of Kawamata
Apr
3
revised An affine singular surface
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