Timeline for Borel subgroup of $Sp(4,\mathbb{C})$
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
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| Jul 11, 2018 at 11:08 | review | Close votes | |||
| Jul 11, 2018 at 21:04 | |||||
| Jul 7, 2018 at 19:28 | comment | added | Gro-Tsen | I'm not sure about your matrix equations, but let me confirm that the dimension of the Borel subgroup of type $C_n$ is $n^2+n$ (the full flag variety has dimension $n^2$), so $6$ when $n=2$. | |
| Jul 7, 2018 at 18:53 | comment | added | YCor | To compute it, it's easier to first work in the Lie algebra where everything is linear, and then exponentiate. I don' remember if J has the right form to make it lower triangular; possibly the antidiagonal matrix $(1,1,-1,-1)$ is better. | |
| Jul 7, 2018 at 18:01 | history | edited | Jianrong Li | CC BY-SA 4.0 |
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| Jul 7, 2018 at 17:41 | history | asked | Jianrong Li | CC BY-SA 4.0 |