Andrea Ferretti

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Name Andrea Ferretti
Member for 2 years
Seen 2 days ago
Website
Location Bonn
Age 31
Postdoc student in Lille
48

Questions
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Books about history of recent mathematics

feb 18 11 at 19:51 Arnav Tripathy 140●1●2●6

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Cohomology and fundamental classes

apr 13 10 at 23:51 Anton Petrunin 11.2k●34●93

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Consequences of the Riemann hypothesis

aug 13 at 19:37 S Mochizuki 1

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Choosing postdocs

may 18 10 at 12:48 Ben Webster♦ 19k●1●37●108

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Ubiquity of the push-pull formula

jan 24 at 1:49 Ryan Reich 3,188●1●7●20

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Most squares in the first half-interval

may 19 10 at 23:29 Cam McLeman 5,546●1●16●41

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Canonical topology on the category of schemes?

dec 24 09 at 0:14 Shizhuo Zhang 3,349●1●4●30

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Stacks and sheaves

dec 20 10 at 12:18 Nikita Kalinin 1,117●3●16

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63

Answers
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Most memorable titles
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Slick proof?: A vector space has the same dimension as its dual if and only if it is finite dimensional
26
Knuth’s intuition that Goldbach might be unprovable
24
What are your favorite instructional counterexamples? (2)
21
Why do we care about the Hilbert scheme of points?
20
Ways to prove the fundamental theorem of algebra
18
Pedagogical question about linear algebra
17
Interesting results in algebraic geometry accessible to 3rd year undergraduates
15
Examples of the moduli space of X giving facts about a certain X
15
Integer points (very naive question)
13
Free, high quality mathematical writing online?
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When do divisors pull back?
12
Is a ‘generic’ variety nonsingular? Or singular?
12
Is Hartshorne’s definition of the category of varieties natural?
10
If f is infinitely differentiable then f coincides with a polynomial
10
What is the Cayley projective plane?
9
Hodge Index theorem for Complex Manifolds
9
Is there a Whitney Embedding Theorem for non-smooth manifolds?
8
What are examples of mathematical concepts named after the wrong people? (Stigler’s law)
8
The definition of homotopy in algebraic topology
8
Collecting proofs that finite multiplicative subgroups of fields are cyclic.
8
K3 surface of genus 8
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blowing up, -1 curves, effective and ample divisors
7
Examples of common false beliefs in mathematics.
7
Math puzzles for dinner
7
On proving that a certain set is not empty by proving that it is actually large
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Why nilpotent elements must be allowed in modern algebraic geometry?
6
Identifying the orientation bundle uniquely
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Looking for an introductory textbook on algebraic geometry for an undergraduate lecture course
6
Family of Enriques surfaces and Grothendieck-Riemann-Roch
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