boundary in spacetime
C34876
concept
A boundary in spacetime is a limiting hypersurface or edge—such as a horizon, singularity, or asymptotic region—beyond which events are not included in the spacetime manifold or cannot causally affect a given region.
All labels observed (3)
| Label | Occurrences |
|---|---|
| boundary in spacetime canonical | 1 |
| causal horizon | 1 |
| observer-dependent horizon | 1 |
Instances (2)
| Instance | Via concept surface |
|---|---|
| Cauchy horizon | — |
| Rindler horizon | causal horizon |