14

Questions
votes newest views recent
1
7
votes
1
answer
331
views

what is the stringy Kähler moduli space?

may 16 12 at 23:06 Satoshi Nawata 584●2●6

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7
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3
answers
602
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how to make the category of chain complexes into an $\infty$-category

jun 20 at 15:56 Hiro Lee Tanaka 1,373●7●14

 
2
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1
answer
159
views

Is the pushforward via a proper map of a finite presentation module of finite presentation?

mar 28 12 at 17:46 a-fortiori 2,786●5●11

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4
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0
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192
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where to learn K-group of coherent sheaves modulo numerical equivalence?

jul 21 at 8:06 Yosemite Sam 812●1●2●10

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9
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0
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395
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coarse moduli space and $\pi_0$

may 4 12 at 7:47 Yosemite Sam 812●1●2●10

 
3
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2
answers
381
views

If $f: X \to Y$ is a finite flat morphism of schemes, $g: Y \to Z$ is a proper morphism of relative dimension one, $Z$ is affine and $E$ is a vector bundle on $Y$ with $R^1g_*E=0$ then $H^1(X,f^*E)=0$?

feb 10 12 at 5:18 Sándor Kovács 23.7k●2●52●73

3
11
votes
1
answer
893
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can a common mortal understand why the affine line is not smooth in brave new algebraic geometry?

nov 17 11 at 17:29 Tyler Lawson 18.7k●2●44●90

 
7
votes
3
answers
484
views

Reference for the derived category of $X$, $[X/G]$ and $X/G$

feb 16 12 at 0:45 Yosemite Sam 812●1●2●10

 
2
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1
answer
457
views

Does Hom(X,Spec R) = Hom(R, O(X)) hold for algebraic stacks?

oct 31 11 at 14:56 Mattia Talpo 343●2●6

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5
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1
answer
871
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surjective morphism of schemes or epimorphism of sheaves?

dec 7 11 at 23:16 Yosemite Sam 812●1●2●10

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