2 papers
math.DG2026
Dimensional reduction associated with unchanged direction trajectories in flat fiber Robertson Walker spacetimes
D. de la Fuente, R. M. Rubio, J. Torrente-Teruel
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…
gr-qc2024
On Twisted Spacetimes: a new class of Galilean cosmological models
Daniel de la Fuente, Rafael M. Rubio, Jose Torrente-Teruel
Within the generalized Newton-Cartan theory, Galilean Twisted spacetimes are introduced as dual models of the well-known relativistic twisted spacetimes. As a natural generalizatio…