User thierry stulemeijer

12 votes

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Conjugacy of Borel subgroups over arbitrary fields

answered Feb 10, 2017 at 10:14

10 votes

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What is a "split $SO(n)$"?

answered Jan 5, 2017 at 20:49

5 votes

Is the action of $\textrm{Gal}(\overline{k}/k)$ on $G \times_k \overline{k}$ a group homomorphism?

answered Mar 21, 2017 at 18:09

5 votes

$G(k)/H(k)$ as a submanifold of $G/H(k)$

answered Jan 2, 2019 at 23:47

4 votes

$(X_0,R_0)$ is a root system

answered Nov 20, 2016 at 13:41

4 votes

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Is $\overline{\Delta}$ a linearly independent set?

answered Nov 21, 2016 at 13:19

3 votes

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Are those $2$ quadratic forms congruent over $\mathbb{Z}[1/q]$

answered Dec 12, 2016 at 1:30

3 votes

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Parahorics in nonsemisimple reductive algebraic groups

answered Nov 18, 2017 at 18:32

3 votes

Split rank of inner forms

answered Jan 30, 2018 at 12:30

3 votes

Elementary proof that a central simple algebra over a field having a maximal subfield is a cyclic algebra

answered Jun 15, 2018 at 11:20

1 vote

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Reference for Hensel's Lemma in Algebraic Geometry

answered Jan 6, 2017 at 21:09

0 votes

query about quasi-simple algebraic groups over local fields

answered Apr 29, 2015 at 19:38

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12 Answers

Conjugacy of Borel subgroups over arbitrary fields

What is a "split $SO(n)$"?

Is the action of $\textrm{Gal}(\overline{k}/k)$ on $G \times_k \overline{k}$ a group homomorphism?

$G(k)/H(k)$ as a submanifold of $G/H(k)$

$(X_0,R_0)$ is a root system

Is $\overline{\Delta}$ a linearly independent set?

Are those $2$ quadratic forms congruent over $\mathbb{Z}[1/q]$

Parahorics in nonsemisimple reductive algebraic groups

Split rank of inner forms

Elementary proof that a central simple algebra over a field having a maximal subfield is a cyclic algebra

Reference for Hensel's Lemma in Algebraic Geometry

query about quasi-simple algebraic groups over local fields