24 citations · 87 across the 9 of their papers we have counts for
9 papers
Gravitational Waves in Locally Rotationally Symmetric (LRS) Class II Cosmologies
Michael Bradley, Mats Forsberg, Zoltán Keresztes
In this work we consider perturbations of homogeneous and hypersurface orthogonal cosmological backgrounds with local rotational symmetry (LRS), using a method based on the 1 + 1 +…
Gravitational, shear and matter waves in Kantowski-Sachs cosmologies
Zoltán Keresztes, Mats Forsberg, Michael Bradley +2
A general treatment of vorticity-free, perfect fluid perturbations of Kantowski-Sachs models with a positive cosmological constant are considered within the framework of the 1+1+2…
Perturbations of Kantowski-Sachs models with a cosmological constant
Zoltán Keresztes, Mats Forsberg, Michael Bradley +2
We investigate perturbations of Kantowski-Sachs models with a positive cosmological constant, using the gauge invariant 1+3 and 1+1+2 covariant splits of spacetime together with a…
Perturbations of Kantowski-Sachs models
Michael Bradley, Mats Forsberg, Zoltán Keresztes +2
Perturbations of Kantowski-Sachs models with a positive cosmological constant are considered in a harmonic decomposition, in the framework of gauge invariant 1+3 and 1+1+2 covarian…
Density growth in Kantowski-Sachs cosmologies with cosmological constant
Michael Bradley, Peter K. S. Dunsby, Mats Forsberg +1
In this work the growth of density perturbations in Kantowski-Sachs cosmologies with a positive cosmological constant is studied, using the 1+3 and 1+1+2 covariant formalisms. For…
The influence of strong field vacuum polarization on gravitational-electromagnetic wave interaction
Mats Forsberg, Demetrios Papadopoulos, Gert Brodin
The interaction between gravitational and electromagnetic waves in the presence of a static magnetic field is studied. The field strength of the static field is allowed to surpass…