19 citations · 20 across the 2 of their papers we have counts for
4 papers · 1 filter
On constraint-consistency, covariant operators, gauge-invariance, etc
Christos G. Tsagas
We look at the covariant techniques and the ideas on constraints and gauge-invariance, which were recently employed in [gr-qc/0702104] to support earlier work by the same authors.…
Averaging anisotropic cosmologies
John D. Barrow, Christos G. Tsagas
We examine the effects of spatial inhomogeneities on irrotational anisotropic cosmologies by looking at the average properties of anisotropic pressure-free models. Adopting the Buc…
Cosmology in three dimensions: steps towards the general solution
John D. Barrow, Douglas J. Shaw, Christos G. Tsagas
We use covariant and first-order formalism techniques to study the properties of general relativistic cosmology in three dimensions. The covariant approach provides an irreducible…
Magnetized Tolman-Bondi Collapse
Cristiano Germani, Christos G. Tsagas
We investigate the gravitational implosion of magnetized matter by studying the inhomogeneous collapse of a weakly magnetized Tolman-Bondi spacetime. The role of the field is analy…