3 citations · 5 across the 4 of their papers we have counts for
5 papers
Scalaron Quasinormal and Quasi-Bound Modes of Schwarzschild Black Holes in the Bondi-Sachs Formulation of Metric Gravity
Bishop Mongwane, Didam G. A. Duniya, Seturumane Tema +2
We study scalaron quasinormal modes and quasi-bound states of Schwarzschild black holes directly within the Bondi-Sachs formulation of metric gravity, combining frequency-do…
Closing the Cosmographic Hierarchy: Dynamical Attractors from Inflation to Reheating
Seturumane Tema, S. Shajidul Haque, Saurya Das +1
We develop a potential-independent cosmographic framework, in which cosmographic parameters are promoted to dynamical variables within a closed autonomous system. Although the cosm…
Power-Law Bounces in Gravity: Analysis of the Ekpyrosis and Accelerating Regimes
Saurya Das, Peter Dunsby, S. Shajidul Haque +1
We investigate the dynamics of the Friedmann-Lemaître-Robertson-Walker spacetime within the framework of gravity using a compact, model-independent dynamical systems approac…
Relativistic Corrections and Structure Formation in Dark Matter Superfluidity
Seturumane Tema
The theory of dark matter superfluidity has emerged as a compelling framework, in which the dynamics are governed by a non-relativistic superfluid Lagrangian that naturally…
Cosmological Singularity and Power-Law Solutions in Modified Gravity
Saurya Das, S. Shajidul Haque, Seturumane Tema
A bouncing Universe avoids the big-bang singularity. Using the time-like and null Raychaudhhuri equations, we explore whether the bounce near the big-bang, within a broad spectrum…