We systematically review some standard issues and also the latest developments of
modified gravity in cosmology, emphasizing on inflation, bouncing cosmology and late-time …

Over the past decade, f (R) theories have been extensively studied as one of the simplest
modifications to General Relativity. In this article we review various applications of f (R) …

We search for viable f (R) theories of gravity, making use of the equivalence between such
theories and scalar-tensor gravity. We find that models can be made consistent with solar …

We review the work done so far aimed at modeling in an alternative way the dark matter in
the Universe: the scalar field Bose-Einstein condensate dark matter (SFDM/BEC) model. We …

In this paper, we investigate the cosmological viability of a double scalar field model
motivated by warm inflation. To this end, we first set up the theoretical framework in which …

We consider the scotogenic model, where the standard model (SM) is extended by a scalar
doublet and three Z 2 odd SM-singlet fermions (N i, i= 1, 2, 3), all odd under an additional Z …

In simple inflationary cosmological scenarios, the near-exponential growth can be followed
by a long period in which the Universe is dominated by the oscillating inflaton condensate …

A bstract The non-thermal production of dark matter (DM) usually requires very tiny
couplings of the dark sector with the visible sector and therefore is notoriously challenging to …

If cosmic inflation was driven by an electrically neutral scalar field stable on cosmological
time scales, the field necessarily constitutes all or part of dark matter (DM). We study this …

Constantly accumulating observational data continue to confirm that about 70% of the
energy density today consists of dark energy responsible for the accelerated expansion of …