124 citations · 418 across the 27 of their papers we have counts for
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physics.gen-ph2021
A new topological perspective of expanding space-times with applications to cosmology
Nasr Ahmed, Anirudh Pradhan, F. Salama
We discuss the possible role of the Tietze extension theorem in providing a rigorous topological base to the expanding space-time in cosmology. A simple toy model has been introduc…
gr-qc2021★ 5 cited
Note on Dark Energy and Cosmic Transit in a scale-invariance cosmology
Nasr Ahmed, Tarek M. Kamel
In general, the laws of physics are not invariant under a change of scale. To find out whether the 'scale-invariance hypothesis' corresponds to nature or not, a careful examination…