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gr-qc2022
A positive cosmological constant as a geometrical artifact
Pantelis S. Apostolopoulos, Christos Tsipogiannis
We revisit the classical mechanism to produce dimensional spacetimes via Kaluza-Klein compactification. We made the assumption that the dimensional bulk geo…
gr-qc2022★ 2 cited
Constructing a family of conformally flat scalar field models
Pantelis S. Apostolopoulos
Using purely geometrical methods we present a mechanism to solve the scalar field equations of motion (non-minimally coupled with gravity) in a spherically symmetric background. We…