Timeline for Topology of the projective symplectic group
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 12, 2021 at 9:07 | vote | accept | Puzzled | ||
| Mar 8, 2020 at 10:21 | comment | added | Puzzled | Thank you very much to you all for the answer and the comments. I modified my question to better explain what is confusing me about the irreducibility of the symplectic group. | |
| Mar 7, 2020 at 10:37 | comment | added | YCor | PS: connectedness still holds for the stabilizer of an arbitrary alternating form: indeed it has a matrix block-triangular decomposition with diagonal blocks $\mathrm{Sp}(2n)$ and $\mathrm{GL}_m$, and upper block abelian unipotent of dimension $2mn$ (the unipotent radical). | |
| Mar 7, 2020 at 8:54 | history | answered | YCor | CC BY-SA 4.0 |