Various pulsar timing array (PTA) experiments (NANOGrav, EPTA, PPTA, CPTA, including
data from InPTA) very recently reported evidence for excess red common-spectrum signals …

A discrete space-time structure lying at about the Planck scale may become manifest in the
form of very small violations of the conservation of the matter energy-momentum tensor. In …

The β-exponential inflation is driven by a class of primordial potentials, derived in the
framework of braneworld scenarios, that generalizes the well-known power law inflation. In …

We focus on the inflationary predictions of $\beta $-exponential potential models, in which
the inflaton is a representation of the field delineating the size of extra-dimension. Since it …

This work deals with the presence of localized static structures in the real line, described by
relativistic real scalar fields in two spacetime dimensions. We consider models featuring …

There is solid theoretical and observational motivation behind the idea of scale-invariance
as a fundamental symmetry of Nature. We consider a recently proposed classically scale …

We consider f (R, T) modified theories of gravity in the context of string-theory-inspired
dilaton gravity. We deal with a specific model that under certain conditions describes the late …

We investigate perturbations in power-law monomial potentials within inflationary models
driven by a single scalar field. By introducing a second term to the original potential, we …

More than 30 inflationary models are confronted with the recently improved limit on the
tensor-to-scalar ratio presented by the Planck team. I show that a few more models are …

In this work we revisit power law, 1 M 2 R β, inflation to find the deviations from R 2 inflation
allowed by current cosmic microwave background (CMB) and large-scale structure (LSS) …