Timeline for Conformal equivalence degenerate metric tensors
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 31, 2022 at 9:05 | vote | accept | Athena | ||
| Mar 30, 2022 at 17:40 | answer | added | Robert Bryant | timeline score: 6 | |
| Mar 30, 2022 at 7:41 | comment | added | Ben McKay | Can you really define a Weyl or a Cotton tensor? I doubt it. You can quotient, at least locally, by the foliation tangent to the kernel, and then apply Nijenhuis--Woolf to prove that any two such are locally isomorphic, I would guess. But if I am right, there can't be any tensor invariants of such a geometric structure. | |
| S Mar 30, 2022 at 6:29 | review | First questions | |||
| Mar 30, 2022 at 7:45 | |||||
| S Mar 30, 2022 at 6:29 | history | asked | Athena | CC BY-SA 4.0 |