We review (mainly) quantum effects in the theories where the gravity sector is described by
metric and dilaton. The one-loop effective action for dilatonic gravity in two and four …

We perform a detailed dynamical analysis of anisotropic scalar-field cosmologies, and in
particular of the most significant Kantowski–Sachs, locally rotationally symmetric (LRS) …

The primary purpose of all physical theory is rooted in reality, and most relativists pretend to
be physicists. We may often be members of departments of mathematics and our work …

Marginal Lemaitre-Tolman-Bondi (LTB) models with corrections from loop quantum gravity
have recently been studied with an emphasis on potential singularity resolution. This paper …

We discuss different kinds of Killing horizons possible in static, spherically symmetric
configurations and recently classified as “usual,”“naked,” and “truly naked” ones depending …

In this paper we investigate, from the dynamical systems perspective, the evolution of a
Kantowski-Sachs metric in a generic class of f (R) models. We present conditions (ie …

The emergent universe scenario is a proposal for resolving the Big Bang singularity problem
in the standard Friedmann–Lemaitre–Robertson–Walker cosmology. In the context of this …

The reduction of 4d matter-gravity theory to S2, H2 or R2 leads to effective 2d dilatonic
gravity with dilaton coupled matter. Spinors give the exceptional example of the theory which …

We consider the brane Kantowski-Sachs universe when bulk space is five-dimensional anti-
de Sitter obeying a linear equation of state of the form p=(γ− 1) ρ+ p 0, where γ and p 0 are …

We review the anomaly induced effective action for dilaton coupled spinors and scalars in
large-N and s-wave approximation. It may be applied to study the following fundamental …