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Oct
3 |
awarded | Good Question |
Aug
31 |
comment |
Is there a finite set of primes such that if K over Q is completely split at all those primes then it is Q?
This is a great answer emphasizing many number-theory results. Thanks! |
Jul
2 |
awarded | Curious |
Feb
27 |
awarded | Good Question |
Feb
27 |
asked | Clarification about Tits' article in the Corvallis |
Feb
14 |
comment |
Examples of non-split algebraic groups
@user76758 - I was sloppy but I thought there is no confusion, since Humphreys' comment said minimally but I edited the question. Could you suggest a reference where I can find about unit groups of CSAs that you mention? (PS: $E\cap E'$ is ill-posed too :) ) |
Feb
14 |
revised |
Examples of non-split algebraic groups
made more precise |
Feb
14 |
revised |
Examples of non-split algebraic groups
added 4 characters in body |
Feb
14 |
comment |
Examples of non-split algebraic groups
Keerthi: Sorry for the error, I really meant $v \not\in S$. Also could you give a reference for the statement "For almost all p, G has a smooth reductive model over Z_p". Thanks. |
Feb
14 |
comment |
Examples of non-split algebraic groups
Thanks Prof. Humphreys, I edited the question - yes, in both cases. |
Feb
14 |
revised |
Examples of non-split algebraic groups
added hypotheses based on Jim Humphreys' comment. |
Feb
14 |
asked | Examples of non-split algebraic groups |
Feb
13 |
awarded | Notable Question |
Feb
11 |
awarded | Investor |
Oct
9 |
awarded | Favorite Question |
Oct
8 |
awarded | Caucus |
Oct
8 |
awarded | Constituent |
Sep
9 |
awarded | Popular Question |
May
11 |
comment |
Modern Mathematical Achievements Accessible to Undergraduates
This cannot possibly be correct because it doesn't add up modulo 10. But yes, Elkies has results in a similar flavor. |
Feb
24 |
comment |
Exercise in Milne's CFT notes
Nice argument, thanks! |