The nature of dark matter (DM) and dark energy (DE) which is supposed to constitute about
95% of the energy density of the universe is still a mystery. There is no shortage of ideas …

We give a brief overview of the string landscape and techniques used to construct string
compactifications. We then explain how this motivates the notion of the swampland and …

Motivated by anomalies in cosmic microwave background observations, we investigate the
implications of f (Q, T) gravity in Bianchi type-I spacetime, aiming to characterize the …

Motivated by the fact that the universe is dominated by dark matter and dark energy, we
consider rotating black holes surrounded by perfect fluid dark matter and study the accretion …

We focus on viable f (T) teleparallel cosmological models, namely power law, exponential,
and square-root exponential, carrying out a detailed study of their evolution at all scales …

Understanding the accelerating expansion of the Universe remains a fundamental
challenge in modern cosmology. In this paper, we investigate a cosmological model …

In this paper, we investigate the stability of the flat Friedmann-Lemaitre-Robertson-Walker
metric in f (T) gravity. This is achieved by analyzing the small perturbations, δ about the …

In most cosmological models, the equation of state of the dark matter is assumed to be zero,
which means that the dark matter is pressure-less or cold. While this hypothesis is based on …

In this article, we introduce an innovative parametric representation of the Hubble
parameter, providing a model-independent means to explore the dynamics of an …

In this paper, we present some cosmological models with a hybrid scale factor (HSF) in the
framework of general relativity (GR). The HSF fosters an early deceleration as well as a late …