Mikhail Borovoi's user avatar
Mikhail Borovoi's user avatar
Mikhail Borovoi's user avatar
Mikhail Borovoi
  • Member for 14 years, 1 month
  • Last seen this week
41 votes
Accepted

Isomorphic general linear groups implies isomorphic fields?

22 votes

What is known about the cohomological dimension of algebraic number fields?

21 votes

Cayley Transform for all reductive groups a.k.a an algebraic logarithm

16 votes

In a compact lie group, can two closed connected subgroups generate a non-closed subgroup?

16 votes

Non-isomorphic complex Lie groups with the same exceptional Lie algebra for $\mathfrak{g_2,f_4,e_6,e_7,e_8}$?

15 votes

Existence of zero cycles of degree one vs existence of rational points

14 votes

Is there a formula for the Frobenius-Schur indicator of a rep of a Lie group?

12 votes

Are units of rings of functions on algebraic varieties finitely generated (mod. constants)?

11 votes

Does $SU(N)$ have pseudo-real representation?

10 votes
Accepted

Galois cohomology class of a reductive group not coming from a torus

9 votes
Accepted

$N_{G}(E)/C_{G}(E)$ is the Weyl group of $G$?

9 votes
Accepted

Relationship between fans and root data

9 votes
Accepted

About the conjugation of semi-simple subgroups

9 votes

Real Lie groups versus real linear algebraic groups: differences in connexity and fundamental group

8 votes
Accepted

Group cohomology question, trivial Galois action on discrete Galois module means we can say what about kernel of map

8 votes
Accepted

Reflex fields of Shimura varieties

8 votes

When is the normalizer of the maximal torus maximal?

7 votes
Accepted

Real forms of complex reductive groups

7 votes
Accepted

Root system of fixed point Lie sub-algebra

7 votes

How Much Flesh to the Bones does an Initial Online Publication need?

7 votes
Accepted

Conjugacy classes of involutions in compact simple Lie group

7 votes
Accepted

Compact dual of a noncompact Lie group

7 votes
Accepted

What is the algebraic fundamental groups of $SO(n)$ and $Sp(2n)$?

7 votes

The algebraic fundamental group of a reductive algebraic group

7 votes

different Shimura data with common underlying group?

6 votes

Proper compact connected subgroup of $Spin(n)$

6 votes

Elementary reference for algebraic groups

6 votes

Torsors trivializing over a fixed finite etale cover

6 votes
Accepted

Characters of simply connected semsimple algebraic groups over local fields

6 votes

exponential/logarithm for unipotent algebraic groups