Metadata
aliases: [Null cone in Minkowski space]
shorthands: {}
created: 2022-02-22 14:37:21
modified: 2022-02-22 14:37:46
Let be a Minkowski spacetime and is a Minkowski metric for it. Then the lightcone of an event is the following set of points:
So is on 's light cone if:

The -vector classification can be directly tied to the idea of lightcones:
- Timelike vectors are inside the lightcone
- Lightlike vectors are on the boundary of the lightcone
- Spacelike vectors are outside of the lightcone