20,548 reputation
25889
bio website homepage.sns.it/vistoli
location Italy
age 56
visits member for 4 years, 7 months
seen Jan 28 at 15:16
My name is Angelo Vistoli. I do algebraic geometry, mostly moduli theory.

Normally I don't answer questions from anonymous users.

Oct
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awarded  Good Answer
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30
awarded  Explainer
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26
awarded  Good Answer
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awarded  Nice Answer
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awarded  Curious
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12
awarded  Good Answer
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21
awarded  Yearling
Jan
13
awarded  Enlightened
Jan
13
awarded  Nice Answer
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26
awarded  Enlightened
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26
awarded  Nice Answer
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awarded  Guru
Sep
15
comment Descent for group actions
Sorry, I had not read the question properly, I thought that $G$ was the Galois group.
Sep
15
comment Descent for group actions
It always descends to the space of invariants in $V$.
Sep
13
answered Determine complex analytic germ along a smooth compact curve via normal bundle?
Aug
16
awarded  Nice Answer
Aug
9
comment Can I conclude that a morphism of vector bundles is zero if it is so fiberwise?
Consider the case that $X = Y$, $f = \mathrm{id}_X$, $\cal U = \cal V = \cal O$, and $X$ is not reduced.
Jul
30
awarded  Enlightened
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30
awarded  Nice Answer
Jul
25
comment Vanishing of Tor
$I^{n-1}/I^n$ is a free $R/I$-module, so the statement follows from a simple induction.