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gr-qc2023
Conformal Symmetries of the Strumia and Tetradis Metric
Pantelis S. Apostolopoulos, Christos Tsipogiannis
In a recent paper, a new conformally flat metric was introduced, describing an expanding scalar field in a spherically symmetric geometry. The spacetime can be interpreted as a Sch…
gr-qc2023
A class of 5D inhomogeneous models with a cosmological constant
Pantelis S. Apostolopoulos
In this work we would like to address the problem of the effect of bulk matter on the brane cosmological evolution in a general way. We assume that the spatial part of the brane me…