Timeline for Null vector space in Minkowski space
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 23, 2020 at 17:33 | vote | accept | DJA | ||
| Oct 20, 2020 at 23:58 | comment | added | CR Drost | In particular if I add together (1, 1, 0, 0) and (1, -1, 0, 0) which are both null, I get (2, 0, 0, 0) which is timelike. One can create a "null tetrad", a basis of Minkowski space where all 4 basis four-vectors are null, if desired -- (1, 0, 0, -1), (1, 0, 0, 1), (1, 1, 0, 0), (1, 0, 1, 0) should be an example, Penrose-Newman formalisms instead choose (1, 0, 0, -1), (1, 0, 0, 1), (0, 1, i, 0) and (0, 1, -i, 0) but this is because they are happy for Minkowski space to be complexified. | |
| Oct 20, 2020 at 23:14 | history | answered | J. Murray | CC BY-SA 4.0 |