Browsing by Author "Mongwane, Bishop"

Now showing items 1-3 of 3

Cosmic electromagnetic fields due to perturbations in the gravitational field

Author: Mongwane, Bishop ; Dunsby, Peter K S ; Osano, Otieno Bob Date: 2012 We use non-linear gauge-invariant perturbation theory to study the interaction of an inflation produced seed magnetic field with density and gravitational wave perturbations in an almost Friedmann-Lemaˆıtre-Robertson-Walker (FLRW) spacetime ... Read more
Problems in cosmology and numerical relativity

Author: Mongwane, Bishop Date: 2015 A generic feature of most inflationary scenarios is the generation of primordial perturbations. Ordinarily, such perturbations can interact with a weak magnetic field in a plasma, resulting in a wide range of phenomena, such as the parametric ... Read more
Relativistic neutron stars in general relativity and fourth order gravity

Author: Masetlwa, Nkosinathi Date: 2021 This thesis investigates numerical instabilities arising from stiffness in the models of nonrotating, spherically symmetric single neutron star systems. The work deals with two distinct problems, each of which involves a stiff system of ... Read more

Now showing items 1-3 of 3

Browse