16 citations · 19 across the 3 of their papers we have counts for
3 papers
physics.gen-ph2018★ 1 cited
Space-time singularities and the theory of retracts
Nasr Ahmed, H. Rafat
In previous publications, we have started investigating some possible applications to the retraction theory in gravitational physics and showed that it can be very useful in provid…
physics.gen-ph2018★ 2 cited
On the existence of deformations and dimensional reduction in wormholes and black holes
Nasr Ahmed, H. Rafat
The deformation retract is, by definition, a homotopy between a retraction and the identity map. We show that applying this topological concept to Ricci-flat wormholes/black holes…
gr-qc2017★ 16 cited
Topological Origin of Holographic Principle: Application to wormholes
Nasr Ahmed, Hisham Rafat
In this paper, we suggest a mathematical representation to the holographic principle through the theory topological retracts. We found that the topological retraction is the mathem…