Timeline for Tensor bundles as G structures
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 8, 2016 at 17:09 | comment | added | Liviu Nicolaescu | @MikeCocos Got it | |
| Jan 8, 2016 at 16:44 | comment | added | Mike Cocos | Thank you Liviu. I did not say that $GL$ acts by conjugation on symmetric bilinear forms. $GL(3)$ acts by matrix multiplication on the frames of the bundle $S^2T\Sigma$. The subgroup of $GL(3,)$ defined as $$ \left( \begin{array}{lll} a^2 & 2ab &b^2 \\ ac & bc+ad & bd \\ c^2 & 2cd & d^2 \end{array} \right) $$ is isomorphic to $PGL(2,\mathbb{R}).$ | |
| Jan 8, 2016 at 16:13 | history | answered | Liviu Nicolaescu | CC BY-SA 3.0 |