2 papers
gr-qc2025
The solution space of a five-dimensional geometry: Kundt spacetimes and cosmological time-crystals
Homa Shababi, Theophanes Grammenos, Nikolaos Dimakis +2
We uncover the solution space of a five dimensional geometry which we deem it as the direct counterpart of the Bianchi Type V cosmological model. We kinematically reduce the scale…
gr-qc2024
Static, spherically symmetric solutions in -gravity and in nonmetricity scalar-tensor theory
Nikolaos Dimakis, Petros A. Terzis, Andronikos Paliathanasis +1
We solve the gravitational field equations for a static, spherically symmetric spacetime within the framework of the symmetric teleparallel theory of gravity. Specifically, we deri…