Dynamical systems theory is especially well-suited for determining the possible asymptotic
states (at both early and late times) of cosmological models, particularly when the governing …

We contrast the initial condition requirements of various contemporary cosmological models
including inflationary and bouncing cosmologies. Canonical quantization of general …

The scalar field degree of freedom in Einstein's plus matter field equations is decoupled for
Bianchi type I and V general cosmological models. The source, apart from the minimally …

A cosmology is considered driven by a stress-energy tensor consisting of a perfect fluid, an
inhomogeneous pressure term (which we call a “tachyonic dust” for reasons which will …

We consider the evolution of covariant and gauge invariant linear density perturbations of
scalar field cosmologies using a dynamical systemsʼ approach. We find conditions for …

We study the low energy string effective action with an exponential type dilaton potential and
vanishing torsion in a Bianchi type I space-time geometry. In the Einstein and string frames …

Inhomogeneous G 2 solutions whose material content can be modelled by a scalar field are
considered with a view towards their application as cosmological models. Some generic …

The asymptotic behaviour of two classes of scalar field cosmological models are studied
using the theory of dynamical systems: general relativistic Bianchi models containing matter …

We present new exact cosmological inhomogeneous solutions for gravity coupled to a
scalar field in a general framework specified by the parameter λ. The equations of motion …

Scalar field spacetimes are considered with a view towards their applications in cosmology.
Some results existing in the literature are reviewed and some new results are proved …