| Titre |
Functions of time type, curvature and causality theory |
| Auteurs |
ATINDOGBE CYRIAQUE [1],
HOUNNONKPE RAYMOND [3],
|
| Journal: |
Differential Geometry and its Applications |
| Catégorie Journal: |
Internationale |
| Impact factor: |
|
| Volume Journal: |
64 |
| DOI: |
https://doi.org/10.1016/j.difgeo.2019.02.006 |
| Resume |
In the present paper various necessary and/or sufficient conditions in terms of the existence and properties of quasi-time functions, semi-time functions and generalized time functions are provided to get different levels of the causal ladder in spacetimes. We also show several links between curvature conditions and causality. |
| Mots clés |
Causality
Causal hierarchy
Generalized time function
Quasi-time function Semi-time function Null convergence condition |
| Pages |
114 - 124 |
| Fichier |
(PDF) |