On curvature bounds in Lorentzian length spaces
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2023
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866909987975987200 |
|---|---|
| author | Beran, Tobias Kunzinger, Michael Rott, Felix |
| author_facet | Beran, Tobias Kunzinger, Michael Rott, Felix |
| contents | We introduce several new notions of (sectional) curvature bounds for Lorentzian pre-length spaces: On the one hand, we provide convexity/concavity conditions for the (modified) time separation function, and, on the other hand, we study four-point conditions, which are suitable also for the non-intrinsic setting. Via these concepts we are able to establish (under mild assumptions) the equivalence of all previously known formulations of curvature bounds. In particular, we obtain the equivalence of causal and timelike curvature bounds as introduced in Kunzinger and Sämann (Ann. Glob. Anal. Geom. 54(3):399-447, 2018). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_12062 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | On curvature bounds in Lorentzian length spaces Beran, Tobias Kunzinger, Michael Rott, Felix Differential Geometry Metric Geometry 53C23, 51K10, 53C50, 53B30 We introduce several new notions of (sectional) curvature bounds for Lorentzian pre-length spaces: On the one hand, we provide convexity/concavity conditions for the (modified) time separation function, and, on the other hand, we study four-point conditions, which are suitable also for the non-intrinsic setting. Via these concepts we are able to establish (under mild assumptions) the equivalence of all previously known formulations of curvature bounds. In particular, we obtain the equivalence of causal and timelike curvature bounds as introduced in Kunzinger and Sämann (Ann. Glob. Anal. Geom. 54(3):399-447, 2018). |
| title | On curvature bounds in Lorentzian length spaces |
| topic | Differential Geometry Metric Geometry 53C23, 51K10, 53C50, 53B30 |
| url | https://arxiv.org/abs/2309.12062 |