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Nonsingular Black Hole
Ali H. Chamseddine, Viatcheslav Mukhanov
We consider the Schwarzschild black hole and show how, in a theory with limiting curvature, the physical singularity "inside it" is removed. The resulting spacetime is geodesically…
Resolving Cosmological Singularities
Ali H. Chamseddine, Viatcheslav Mukhanov
We find a simple modification of the longitudinal mode in General Relativity which incorporates the idea of limiting curvature. In this case the singularities in contracting Friedm…
On Unification of Gravity and Gauge Interactions
Ali H. Chamseddine, Viatcheslav Mukhanov
Considering a higher dimensional Lorentz group as the tangent symmetry, we unify gravity and gauge interactions in a natural way. The spin connection of the gauged Lorentz group is…
Inhomogeneous Dark Energy
Ali H. Chamseddine, Viatcheslav Mukhanov
We modify Einstein General Relativity by adding non-dynamical scalar fields to account simultaneously for both dark matter and dark energy. The dark energy in this case can be dist…