An elliptic proof of the splitting theorems from Lorentzian geometry

Fuente: arXiv
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Main Authors: Braun, Mathias, Gigli, Nicola, McCann, Robert J., Ohanyan, Argam, Sämann, Clemens
Format: Preprint
Published: 2024
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_version_ 1866917805045055488
author Braun, Mathias
Gigli, Nicola
McCann, Robert J.
Ohanyan, Argam
Sämann, Clemens
author_facet Braun, Mathias
Gigli, Nicola
McCann, Robert J.
Ohanyan, Argam
Sämann, Clemens
contents We provide a new proof of the splitting theorems from Lorentzian geometry, in which simplicity is gained by sacrificing linearity of the d'Alembertian to recover ellipticity. We exploit a negative homogeneity (non-uniformly) elliptic $p$-d'Alembert operator for this purpose. This allows us to bring the Eschenburg, Galloway, and Newman Lorentzian splitting theorems into a framework closer to the Cheeger-Gromoll splitting theorem from Riemannian geometry.
format Preprint
id arxiv_https___arxiv_org_abs_2410_12632
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle An elliptic proof of the splitting theorems from Lorentzian geometry
Braun, Mathias
Gigli, Nicola
McCann, Robert J.
Ohanyan, Argam
Sämann, Clemens
Differential Geometry
Mathematical Physics
Analysis of PDEs
Metric Geometry
83C75, 35J92 35Q75, 49Q22, 51K10, 53C21 53C50 58J05
We provide a new proof of the splitting theorems from Lorentzian geometry, in which simplicity is gained by sacrificing linearity of the d'Alembertian to recover ellipticity. We exploit a negative homogeneity (non-uniformly) elliptic $p$-d'Alembert operator for this purpose. This allows us to bring the Eschenburg, Galloway, and Newman Lorentzian splitting theorems into a framework closer to the Cheeger-Gromoll splitting theorem from Riemannian geometry.
title An elliptic proof of the splitting theorems from Lorentzian geometry
topic Differential Geometry
Mathematical Physics
Analysis of PDEs
Metric Geometry
83C75, 35J92 35Q75, 49Q22, 51K10, 53C21 53C50 58J05
url https://arxiv.org/abs/2410.12632