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 Yearling
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  • 108 votes cast
Apr
30
asked Solving $f''(t) =k(t) f(t)$
Feb
9
awarded  Yearling
Dec
25
accepted Automorphism of the free group
Jul
8
comment Relative cohomology versus cohomology.
No I meant $S \setminus X $
Jul
8
asked Relative cohomology versus cohomology.
Jul
2
awarded  Curious
Feb
9
awarded  Yearling
Jan
31
comment Semisimple Lie algebras are perfect.
Finite dimensional naturally.
Jan
31
revised Semisimple Lie algebras are perfect.
added 19 characters in body
Jan
31
asked Semisimple Lie algebras are perfect.
Jan
29
awarded  Benefactor
Jan
27
accepted List of connected Lie subgroups of $\mathrm{SL}(2,\mathbb{C})$.
Jan
24
comment List of connected Lie subgroups of $\mathrm{SL}(2,\mathbb{C})$.
Thanks for the answer. Let me take the time to read it in detail, I am going to need to learn a bit more of Lie theory to understand your proof.
Jan
24
accepted The group $\mathrm{SL}(n,\mathbb{C})$ .
Jan
24
comment The group $\mathrm{SL}(n,\mathbb{C})$ .
Thank you very much, the result is in Kapovich's book, p.69.
Jan
23
revised List of connected Lie subgroups of $\mathrm{SL}(2,\mathbb{C})$.
added 235 characters in body
Jan
23
awarded  Promoter
Jan
23
comment The group $\mathrm{SL}(n,\mathbb{C})$ .
So I have taken a look at Dieudonné's book. I focuses to much on the general case, where $K$ is an unspecified field. The funny thing is he doesn't require the product law to be commutative, which I knew to be an old French specificity, but which I had never seen written. Actually, I am more interested in the Lie group structure, this question echoes the one I asked two days ago : math.stackexchange.com/questions/646183/…
Jan
23
comment The group $\mathrm{SL}(n,\mathbb{C})$ .
I am familiar with the classical results. But I am going to take a look on the book of Dieudonné, thank you very much.
Jan
23
asked The group $\mathrm{SL}(n,\mathbb{C})$ .