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Dimensional reduction associated with unchanged direction trajectories in flat fiber Robertson Walker spacetimes
Abstract
In this article, we establish a new dimensional reduction result in (Galilean or Lorentzian) Robertson Walker spacetimes with Euclidean fiber. In this context, we prove that every unchanged direction observer can be embedded into a three dimensional totally geodesic timelike submanifold.
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BibTeX
@misc{fuente2026dimensional,
title = {{Dimensional reduction associated with unchanged direction trajectories in flat fiber Robertson Walker spacetimes}},
author = {D. de la Fuente and R. M. Rubio and J. Torrente-Teruel},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.00229},
eprint = {2609.00229},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.00229},
}
RIS
TY - UNPB
TI - Dimensional reduction associated with unchanged direction trajectories in flat fiber Robertson Walker spacetimes
AU - D. de la Fuente
AU - R. M. Rubio
AU - J. Torrente-Teruel
PY - 2026
DA - 2026/09/01
PB - arXiv
DO - 10.48550/arxiv.2609.00229
UR - https://arxiv.org/abs/2609.00229
AB - In this article, we establish a new dimensional reduction result in (Galilean or Lorentzian) Robertson Walker spacetimes with Euclidean fiber. In this context, we prove that every unchanged direction observer can be embedded into a three dimensional totally geodesic timelike submanifold.
ER -