28 citations · 116 across the 12 of their papers we have counts for
3 papers · 1 filter
Linear Nash-Greene fluctuations on the evolution of and tensions
Abraão J. S. Capistrano, Luís A. Cabral, José A. P. F. Marão +1
We present the perturbation equations in an embedded four space-time from the linear Nash-Greene fluctuations of background metric. In the context of a five-dimensional bulk, we sh…
Implications on the cosmic coincidence by a dynamical extrinsic curvature
A. J. S Capistrano, L. A. Cabral
In this work, we apply the smooth deformation concept in order to obtain a modification of Friedmann equations. It is shown that the cosmic coincidence can be at least alleviated u…
Evolving extrinsic curvature and the cosmological constant problem
Abraao J. S. Capistrano, Luiz A. Cabral
The concept of smooth deformation of Riemannian manifolds associated with the extrinsic curvature is explained and applied to the FLRW cosmology. We show that such deformation can…