We investigate the possibility that the observed behavior of test particles outside galaxies,
which is usually explained by assuming the existence of dark matter, is the result of the …

We investigate the coupling of matter to geometry in conformal quadratic Weyl gravity, by
assuming a coupling term of the form L m R~ 2, where L m is the ordinary matter …

We consider dark energy models obtained from the general conformal transformation of the
Kropina metric, representing an (α, β)-type Finslerian geometry, constructed as the ratio of …

We construct F (T,(∇ T) 2,□ T) gravitational modifications, which are novel classes of
modified theories arising from higher-derivative torsional terms in the action and are different …

We use the causal horizon entropy to study the asymptotic behaviors of regular AdS black
holes. In some literature, the causal horizon entropy is regarded as a generalized …

In the de Sitter-invariant approach to gravitation, all solutions to the gravitational field
equations are spacetimes that reduce locally to de Sitter. Consequently, besides including a …

The Planck mass and the cosmological constant determine the minimum and the maximum
distances in the physical Universe. A relativistic theory, which takes into account a …

The replacement of the Poincaré-invariant Einstein special relativity by a de Sitter-invariant
special relativity produces concomitant changes in all relativistic theories, including general …

The spacetime short-distance structure at the Planck scale is governed by the Planck length,
usually interpreted as a three-dimensional Euclidian length. As such, it is not Lorentz …

The conformal cyclic cosmological evolution of the universe is discussed with the principles
of loop quantum gravity. The application of quantum mechanical aspects enables …