SashaP

Member for 11 years, 3 months
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ag.algebraic-geometry

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46/80 answers

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Answers

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35

Crux of Dwork's proof of rationality of the zeta function?

Sep 10, 2016

17

Commutative ring $R$ with no nontrivial idempotents, with a localization $R_r$ with infinitely many idempotents

Apr 21, 2020

12

Are "large enough" finite etale covers arithmetic?

Jun 27, 2020

12

Question on the Sato-Tate conjecture

Oct 10, 2016

11

Are the Eigenvalues of the Frobenius on Crystalline cohomology bounded by degree?

Sep 4, 2016

Questions

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32

Etale cohomology can not be computed by Cech

Sep 23, 2016

24

Is the $H$-space structure on $S^7$ associative up to homotopy?

Dec 3, 2016

15

Lower central series quotients in terms of (co)homology

Apr 17, 2016

14

Local proof of Grothendieck-Riemann-Roch theorem

May 21, 2016

9

Grothendieck's motivation of crystalline cohomology

Sep 30, 2016

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ag.algebraic-geometry

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nt.number-theory

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arithmetic-geometry

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ac.commutative-algebra

72

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13

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p-adic-hodge-theory

42

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11

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Reputation

+10

Is there a version of algebraic de Rham cohomology that can be used to calculate torsion classes?

+10

Coefficients of the characteristic polynomial of the map on algebraic de Rham cohomology

+40

Is the vector bundle over a vector bundle, a vector bundle over the base scheme?

+10

Is the $H$-space structure on $S^7$ associative up to homotopy?

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