User user27920

18 votes

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Differences in philosophy between Lie Groups and Differential Galois Theory

answered Jul 10, 2014 at 17:33

15 votes

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Picard of the product of two curves

answered Nov 18, 2014 at 5:46

13 votes

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GIT over integers

answered Jul 18, 2014 at 9:34

13 votes

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Is every closed subgroup of $\text{GL}_n(K[[x]])$ finitely generated?

answered Aug 9, 2014 at 22:24

7 votes

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Compactness of adelic quotients for unipotent groups over global fields

answered Sep 3, 2014 at 2:56

7 votes

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On a proposition in Hartshorne's paper "Ample vector bundles on curves"

answered Nov 16, 2014 at 7:17

6 votes

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Theorem 7b of Serre's "Propriétés galoisiennes des points d'ordre fini des courbes elliptiques"

answered Sep 13, 2014 at 11:29

6 votes

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"Unramified" extension of DVRs and permanence of excellence

answered Nov 3, 2014 at 2:42

6 votes

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Why is the Tate local duality pairing compatible with the Cartier duality pairing?

answered Jul 29, 2014 at 19:20

6 votes

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question about the induced homomorphism of etale fundamental groups

answered Jul 20, 2014 at 18:00

6 votes

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Orbits of an action of maximal compact subgroups of p-adic orthogonal groups

answered Jul 13, 2014 at 1:47

6 votes

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Chinese Remainder Theorem backwards

answered Jul 2, 2014 at 14:10

5 votes

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Is an extension of compact Hausdorff topological groups compact?

answered Jul 12, 2014 at 1:36

5 votes

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The cardinality of first non-abelian Galois cohomology

answered Jun 28, 2014 at 5:22

5 votes

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Why is the norm map dual to restriction under Tate local duality?

answered Jul 28, 2014 at 0:31

5 votes

Openness of finite index subgroups of $\mathrm{GL}_n(\prod O_v)$

answered Sep 5, 2014 at 20:56

5 votes

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Is this formally étale morphism of schemes an isomorphism?

answered Nov 3, 2014 at 3:03

4 votes

Minimal fields of isomorphism for varieties

answered Jul 7, 2014 at 21:29

4 votes

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kernel of isogeny becomes constant after base change

answered Jun 10, 2014 at 11:18

4 votes

Specialization Map of family of abelian varieties

answered Jun 14, 2014 at 5:55

4 votes

Ideals in the I-adic completion of a ring

answered Jun 25, 2014 at 14:18

4 votes

Absolutely irreducible p-adic representation of the absolute Galois group of Q_p

answered Jun 26, 2014 at 17:10

3 votes

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on lifting extensions

answered Nov 2, 2014 at 14:24

1 vote

Compact elements in $G(K)$ for a reductive group $G$ over a nonarchimedean local field $K$

answered Oct 13, 2014 at 8:11

0 votes

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Which polynomials define extensions of $k(t)$ unramified at the finite places

answered Aug 1, 2014 at 6:34

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25 Answers

Differences in philosophy between Lie Groups and Differential Galois Theory

Picard of the product of two curves

GIT over integers

Is every closed subgroup of $\text{GL}_n(K[[x]])$ finitely generated?

Compactness of adelic quotients for unipotent groups over global fields

On a proposition in Hartshorne's paper "Ample vector bundles on curves"

Theorem 7b of Serre's "Propriétés galoisiennes des points d'ordre fini des courbes elliptiques"

"Unramified" extension of DVRs and permanence of excellence

Why is the Tate local duality pairing compatible with the Cartier duality pairing?

question about the induced homomorphism of etale fundamental groups

Orbits of an action of maximal compact subgroups of p-adic orthogonal groups

Chinese Remainder Theorem backwards

Is an extension of compact Hausdorff topological groups compact?

The cardinality of first non-abelian Galois cohomology

Why is the norm map dual to restriction under Tate local duality?

Openness of finite index subgroups of $\mathrm{GL}_n(\prod O_v)$

Is this formally étale morphism of schemes an isomorphism?

Minimal fields of isomorphism for varieties

kernel of isogeny becomes constant after base change

Specialization Map of family of abelian varieties

Ideals in the I-adic completion of a ring

Absolutely irreducible p-adic representation of the absolute Galois group of Q_p

on lifting extensions

Compact elements in $G(K)$ for a reductive group $G$ over a nonarchimedean local field $K$

Which polynomials define extensions of $k(t)$ unramified at the finite places