Timo Keller

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Name Timo Keller
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Location Germany
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I am a PhD student of Uwe Jannsen interested in arithmetic geometry.
29

Questions
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36
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answers
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a categorical Nakayama lemma?

may 21 12 at 11:58 David Speyer 55.1k●3●102●236

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22
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answers
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Arithmetic geometry examples

jun 5 at 14:49 Olivier 2,703●1●8●19

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answer
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class numbers of $\mathbf{Q}(2^{1/n})$

apr 7 12 at 6:04 Filippo Alberto Edoardo 1,682●5●12

 

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3
votes
1
answer
210
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affine and projective schemes over $\mathbf{F}_1$?

may 9 12 at 12:27 Tom De Medts 2,886●7●17

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47

Answers
votes newest views recent
30
Where is number theory used in the rest of mathematics? (2)
18
A recommended roadmap to Fermat’s Last Theorem
8
What are some examples of ingenious, unexpected constructions?
8
Textbook for Etale Cohomology
6
Why tropical geometry?
5
$\ell$-adic Weil cohomology theory
5
Examples where it’s useful to know that a mathematical object belongs to some family of objects (3)
5
Galois acting on l-adic cohomology
5
Anabelian geometry study materials?
5
About equivalent statements of the Birch and Swinnerton-Dyer Conjecture
5
Stiefel-Whitney class
4
Fundamental Group and Etale Cohomology
4
What makes Geometric CFT easier than CFT?
4
Function fields <-> curves (and beyond)
4
étale cohomology with values in an abelian scheme is torsion?
4
State of the art for Gersten’s conjecture for K-theory?
3
Construction of Kummer map for abelian variety
3
How to define zeta function for curves over a number field
3
Brauer group elements of order $2$
3
Is it known if the absolute Galois group is “divisible”?
3
Elliptic curve over a scheme is a group scheme?
2
The prime number $2$
2
Is there a semisimple $\mathbf{Q}_\ell$-representation of $G_F$ ramified at an infinite set of places?
2
Why is a proper, affine morphism finite?
2
Non-trivial facts about primes coming out of Algebraic Number Theory
2
Factoring a certain quartic mod primes
2
Is a morphism of smooth connected curves over an algebraically closed field either finite flat or constant?
2
Cohomologie Etale
2
Galois cohomology H^1(Q_p, Z_p(2)) = 0?
2
Reference wanted - etale sheaves on $X$ versus on $\overline{X}$
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