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Compacto
  • Member for 3 years, 2 months
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Top posts
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28
What are dessins d'enfants?
Apr 4, 2022
answer
13
Missing exposés in SGA 5, and the composition of the SGA's
Dec 1, 2021
answer
8
Where is Grothendieck's “Résidus et Dualité: Prénotes pour un Séminaire Hartshorne”?
Aug 20
answer
5
On a series of lectures of Deligne on crystalline cohomology in characteristic $0$
Dec 28, 2023
answer
3
Original reference of six functor formalism?
Dec 12, 2023
answer
3
Missing exposés in SGA 5, and the composition of the SGA's
Oct 7
answer
2
Kirby's torus trick
Apr 3, 2022
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7
Proving $\ddot x = w-2x+x^2$, where $w\ge0$, conserves energy
7
Is ths set of vector fields on a manifold a ring?
7
Simpler proof of Lagrange's Theorem?
6
Prove that all roots of polynomial are located in right half plane, given $f(z) = z^3 -6z^2 + 11z - 6 - a$, $a\in \mathbb C$ with modulus<6.
5
Ring with three idempotents satisfying $\alpha+ \beta+ \gamma=0$. Prove that $\alpha=\beta= \gamma$.