Finite-time cosmological singularities and the possible fate of the Universe
Singularities in any physical theory are either remarkable indicators of the unknown
underlying fundamental theory, or indicate a change in the description of the physical reality …
underlying fundamental theory, or indicate a change in the description of the physical reality …
Recent advances in cosmological singularities
O Trivedi - Symmetry, 2024 - mdpi.com
The discovery of the Universe's late-time acceleration and dark energy has led to a great
deal of research into cosmological singularities, and in this brief review, we discuss all the …
deal of research into cosmological singularities, and in this brief review, we discuss all the …
Analysis of the tension problem in the Universe with viscous dark fluid
Two inhomogeneous single-fluid models for the Universe, which are able to naturally solve
the H 0 tension problem, are discussed. The analysis is based on a Bayesian Machine …
the H 0 tension problem, are discussed. The analysis is based on a Bayesian Machine …
Phantom cosmology in an extended theory of gravity
SK Tripathy, B Mishra - Chinese Journal of Physics, 2020 - Elsevier
Some phantom cosmological models without big rip singularity have been constructed in a
simple extended theory of gravity. In the geometrical part of the action, a minimally coupled …
simple extended theory of gravity. In the geometrical part of the action, a minimally coupled …
Constraints on prospective deviations from the cold dark matter model using a Gaussian Process
Recently, using Bayesian Machine Learning, a deviation from the cold dark matter model on
cosmological scales has been put forward. Such a model might replace the proposed non …
cosmological scales has been put forward. Such a model might replace the proposed non …
Black holes in the turbulence phase of viscous rip cosmology
I Brevik, M Jamil - International Journal of Geometric Methods in …, 2019 - World Scientific
We study the phantom fluid in the late universe, thus assuming the equation of state
parameter w to be less than− 1. The fluid is assumed to consist of two components, one …
parameter w to be less than− 1. The fluid is assumed to consist of two components, one …
Little Rip, Pseudo Rip and bounce cosmology from generalized equation of state in the universe with spatial curvature
We consider the Little Rip (LR), Pseudo Rip (PR) and bounce cosmological models in the
Friedmann-Robertson-Walker (FRW) metric with nonzero spatial curvature. We describe the …
Friedmann-Robertson-Walker (FRW) metric with nonzero spatial curvature. We describe the …
Little rip, pseudo rip and bounce cosmology with generalized equation of state in non-standard backgrounds
The discovery of universe's late-time acceleration and dark energy has overseen a great
deal of research into cosmological singularities and particularly future singularities. Perhaps …
deal of research into cosmological singularities and particularly future singularities. Perhaps …
An approach to cold dark matter deviation and the tension problem by using machine learning
In this work, two different models, one with cosmological constant $\Lambda $, and baryonic
and dark matter (with $\omega_ {dm}\neq 0$), and the other with an $ X $ dark energy (with …
and dark matter (with $\omega_ {dm}\neq 0$), and the other with an $ X $ dark energy (with …
Anisotropic Born–Infeld-f (R) cosmologies
S Kibaroğlu - Physics of the Dark Universe, 2025 - Elsevier
In this paper, we investigate anisotropic cosmological solutions within the framework of Born–
Infeld-f (R) gravity, a modification of general relativity that incorporates higher-order …
Infeld-f (R) gravity, a modification of general relativity that incorporates higher-order …