Work

Dimensional reduction associated with unchanged direction trajectories in flat fiber Robertson Walker spacetimes

Year: 2026

Type: preprint

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.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2609.00229

Authors: de la Fuente, D., Rubio, R. M., Torrente-Teruel, J.

Institutions: Universidad de Oviedo, University of Córdoba

Language: English

Topic: Advanced Differential Geometry Research

Subfield: Geometry and Topology

Field: Mathematics

Domain: Physical Sciences

Open Access status: green

Funder: Ministerio de Ciencia e Innovación

Award: G3114942913

OpenAlex ID: W7206175707

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