Nonperturbative quantum geometric effects in loop quantum cosmology (LQC) predict a ρ 2
modification to the Friedmann equation at high energies. The quadratic term is negative …

The Einstein static (ES) universe has played a major role in various emergent scenarios
recently proposed in order to cure the problem of the initial singularity of the standard model …

We investigate nonsingular bounce realizations in the framework of ghost-free generalized
Galileon cosmology, which furthermore can be free of the anisotropy problem. Considering …

We consider a nonsingular origin for the universe starting from an Einstein static universe,
the so-called" emergent universe" scenario, in the framework of a theory which uses two …

A new class of gravity–matter models defined in terms of two independent non-Riemannian
volume forms (alternative generally covariant integration measure densities) on the space …

Abstract A flat FLRW (Friedmann–Lemaitre–Robertson–Walker) cosmological model with
perfect fluid comprising of variable Chaplygin gas (VCG) has been studied in the context of f …

The stability of the Einstein static universe against the homogeneous scalar perturbations in
f (T) gravity is analyzed. Both the spatial closed and open universes are considered. We find …

In this paper we study the emergent universe model in the context of a self-interacting
Jordan–Brans–Dicke theory. The model presents a stable past eternal static solution which …

Loop quantum cosmology (LQC) strongly modifies the high-energy dynamics of Friedmann–
Robertson–Walker models and removes the big-bang singularity. We investigate how LQC …

We study the stability of the Einstein static universe in the Hořava-Lifshitz (HL) gravity and a
generalized version of it formulated by Sotiriou, Visser, and Weifurtner. We find that, for the …