Extended Gravity Cosmography

Abstract

Cosmography can be considered as a sort of a model-independent approach to tackle the dark energy/modified gravity problem. In this review, the success and the shortcomings of the $\Lambda$CDM model, based on General Relativity and standard model of particles, are discussed in view of the most recent observational constraints. The motivations for considering extensions and modifications of General Relativity are taken into account, with particular attention to $f(R)$ and $f(T)$ theories of gravity where dynamics is represented by curvature or torsion field respectively. The features of $f(R)$ models are explored in metric and Palatini formalisms. We discuss the connection between $f(R)$ gravity and scalar-tensor theories highlighting the role of conformal transformations in the Einstein and Jordan frames. Cosmological dynamics of $f(R)$ models is investigated through the corresponding viability criteria. Afterwards, the equivalent formulation of General Relativity (Teleparallel Equivalent General Relativity) in terms of torsion and its extension to $f(T)$ gravity is considered. Finally, the cosmographic method is adopted to break the degeneracy among dark energy models. A novel approach, built upon rational Padé and Chebyshev polynomials, is proposed to overcome limits of standard cosmography based on Taylor expansion. The approach provides accurate model-independent approximations of the Hubble flow. Numerical analyses, based on Monte Carlo Markov Chain integration of cosmic data, are presented to bound coefficients of the cosmographic series. These techniques are thus applied to reconstruct $f(R)$ and $f(T)$ functions and to frame the late-time expansion history of the universe with no \emph{a priori} assumptions on its equation of state. A comparison between the $\Lambda$CDM cosmological model with $f(R)$ and $f(T)$ models is reported.

82 pages, 35 figures. Accepted for publication in IJMPD

References in corpus (160)

• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Observation of Gravitational Waves from a Binary Black Hole Merger
• Dynamics of dark energy
• The Cosmological Constant and Dark Energy
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• f(R) Theories Of Gravity
• Unified cosmic history in modified gravity: from F(R) theory to Lorentz non-invariant models
• f(R) theories
• Cosmological Imprint of an Energy Component with General Equation of State
• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• Extended Theories of Gravity
• Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant
• Cosmological Constant - the Weight of the Vacuum
• Introduction to Modified Gravity and Gravitational Alternative for Dark Energy
• The Case for a Positive Cosmological Lambda-term
• Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution
• Quintessence, Cosmic Coincidence, and the Cosmological Constant
• The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant
• The Cosmological Constant
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• Is Cosmic Speed-Up Due to New Gravitational Physics?
• Phantom Energy and Cosmic Doomsday
• Modified gravity with negative and positive powers of the curvature: unification of the inflation and of the cosmic acceleration
• A 2.4% Determination of the Local Value of the Hubble Constant
• A Dynamical Solution to the Problem of a Small Cosmological Constant and Late-time Cosmic Acceleration
• Improved cosmological constraints from a joint analysis of the SDSS-II and SNLS supernova samples
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations in the Data Release 10 and 11 galaxy samples
• The Clustering of the SDSS DR7 Main Galaxy Sample I: A 4 per cent Distance Measure at z=0.15
• Models of f(R) Cosmic Acceleration that Evade Solar-System Tests
• Cosmological Tracking Solutions
• f(T) teleparallel gravity and cosmology
• Exponential potentials and cosmological scaling solutions
• Curvature Quintessence
• Disappearing cosmological constant in f(R) gravity
• Constraints on the redshift dependence of the dark energy potential
• Dark torsion as the cosmic speed-up
• A 6% measurement of the Hubble parameter at $z\sim 0.45$: direct evidence of the epoch of cosmic re-acceleration
• Modified teleparallel gravity: inflation without inflaton
• Cosmic Chronometers: Constraining the Equation of State of Dark Energy. I: H(z) Measurements
• Einstein's Other Gravity and the Acceleration of the Universe
• Raising the bar: new constraints on the Hubble parameter with cosmic chronometers at z$\sim$2
• Improved constraints on the expansion rate of the Universe up to z~1.1 from the spectroscopic evolution of cosmic chronometers
• Constraining Cosmological Parameters Based on Relative Galaxy Ages
• Modified f(R) gravity consistent with realistic cosmology: from matter dominated epoch to dark energy universe
• Cosmology with a Primordial Scaling Field
• Baryon Acoustic Oscillations in the Lyα forest of BOSS DR11 quasars
• Class of viable modified $f(R)$ gravities describing inflation and the onset of accelerated expansion
• Conservative Constraints on Early Cosmology: an illustration of the Monte Python cosmological parameter inference code
• Dark Energy
• Can modified gravity explain accelerated cosmic expansion?
• Cosmological viability of f(R)-gravity as an ideal fluid and its compatibility with a matter dominated phase
• Conditions for the cosmological viability of f(R) dark energy models
• 1/R gravity and Scalar-Tensor Gravity
• Do consistent $F(R)$ models mimic General Relativity plus $\Lambda$?
• Probing the dark energy: methods and strategies
• H0LiCOW V. New COSMOGRAIL time delays of HE0435-1223: $H_0$ to 3.8% precision from strong lensing in a flat $\Lambda$CDM model
• Modified f(R) gravity unifying R^m inflation with \LambdaCDM epoch
• On Physical Equivalence between Nonlinear Gravity Theories
• Post-Newtonian constraints on f(R) cosmologies in metric formalism
• Post-Newtonian constraints on f(R) cosmologies in Palatini formalism
• Extended Gravity Theories and the Einstein-Hilbert Action
• Cosmological reconstruction of realistic modified F(R) gravities
• 1/R Curvature Corrections as the Source of the Cosmological Acceleration
• The Cosmological Constant Problem and Quintessence
• Solar System constraints to general f(R) gravity
• "Teleparallel" Dark Energy
• Cosmography in f(T)-gravity
• Metric-affine f(R) theories of gravity
• Phantom scalar dark energy as modified gravity: understanding the origin of the Big Rip singularity
• Cosmography of f(R) gravity
• Palatini form of 1/R gravity
• The (pseudo)issue of the conformal frame revisited
• Non-singular exponential gravity: a simple theory for early- and late-time accelerated expansion
• Cosmography and constraints on the equation of state of the Universe in various parametrizations
• Gravitational Energy-Momentum Density in Teleparallel Gravity
• Cosmographic analysis of the equation of state of the universe through Padé approximations
• Phase-Space analysis of Teleparallel Dark Energy
• Metric-Palatini gravity unifying local constraints and late-time cosmic acceleration
• Cosmological constraints on f(R) gravity theories within the Palatini approach
• Viable f(T) models are practically indistinguishable from LCDM
• Solar System experiments do not yet veto modified gravity models
• Cosmographic bounds on the cosmological deceleration-acceleration transition redshift in $f(\mathcal{R})$ gravity
• Conformal transformation in $f(T)$ theories
• Hybrid metric-Palatini gravity
• The matter power spectrum in f(R) gravity
• On the theory and applications of modern cosmography
• The Universality of Einstein Equations
• f(R) gravity theories in Palatini formalism: cosmological dynamics and observational constraints
• Dynamical Dark Energy or Simply Cosmic Curvature?
• Model independent constraints on dark energy evolution from low-redshift observations
• The status of varying constants: a review of the physics, searches and implications
• The Force of Gravity from a Lagrangian containing Inverse Powers of the Ricci Scalar
• Precision cosmology with Padé rational approximations: theoretical predictions versus observational limits
• Cosmographic analysis with Chebyshev polynomials
• Cosmological Evolution in 1/R-Gravity Theory
• Cosmology of hybrid metric-Palatini f(X)-gravity
• Measurements of H(z) and D_A(z) from the Two-Dimensional Two-Point Correlation Function of Sloan Digital Sky Survey Luminous Red Galaxies
• Speeding up the universe using dust with pressure
• Modified Friedmann Equations in R${}^{-1}$-Modified Gravity
• Density perturbations in f(R) gravity theories in metric and Palatini formalisms
• On the Newtonian Limit in Gravity Models with Inverse Powers of R
• Cosmographic Hubble fits to the supernova data
• Forever alone? Testing single eccentric planetary systems for multiple companions
• f(R) Gravity with Torsion: The Metric-Affine Approach
• Cosmographic Constraints and Cosmic Fluids
• Hybrid modified gravity unifying local tests, galactic dynamics and late-time cosmic acceleration
• Growth of matter perturbations in non-minimal teleparallel dark energy
• Correspondence of $F(R)$ Gravity Singularities in Jordan and Einstein Frames
• Cosmological Applications of Pade Approximant
• Palatini versus metric formulation in higher curvature gravity
• Cosmographic reconstruction of $f(\mathcal{T})$ cosmology
• Newtonian limit of the singular f(R) gravity in the Palatini formalism
• Conformal transformations in modified teleparallel theories of gravity revisited
• Deceleration versus Acceleration Universe in Different Frames of $F(R)$ Gravity
• Binned Hubble parameter measurements and the cosmological deceleration-acceleration transition
• Geometric classification of the torsion tensor in space-time
• CMB and Matter Power Spectra of Early f(R) Cosmology in Palatini Formalism
• Strong evidence for an accelerating universe
• Updated constraints on $f(\mathcal{R})$ gravity from cosmography
• The Cauchy problem for metric-affine f(R)-gravity in presence of perfect-fluid matter
• Rational approximations of $f(R)$ cosmography through Padé polynomials
• Model-independent reconstruction of $f(T)$ teleparallel cosmology
• Kinematic model-independent reconstruction of Palatini $f(R)$ cosmology
• Nonflat time-variable dark energy cosmology
• Connecting early and late universe by $f(R)$ gravity
• Model-independent limits and constraints on extended theories of gravity from cosmic reconstruction techniques
• Is cosmography a useful tool for testing cosmology?
• Dark Energy and Dark Matter from an additional adiabatic fluid
• Effective gravitational coupling in modified teleparallel theories
• Effective field description of the Anton-Schmidt cosmic fluid
• Comparative analysis of model-independent methods for exploring the nature of dark energy
• Equivalence principle in the new general relativity
• Is there a concordance value for $H_0$?
• Recovering the effective cosmological constant in extended gravity theories
• Twistor Spaces for QKT Manifolds
• Real-time cosmography with redshift derivatives
• Cosmography of f(R) - brane cosmology
• Potentials for (p,0) and (1,1) supersymmetric sigma models with torsion
• Model-Independent Constraints on Lorentz Invariance Violation via the Cosmographic Approach
• Isotropy of low redshift type Ia Supernovae: A Bayesian analysis
• Cosmography, Decelerating Past, and Cosmological Models: Learning the Bayesian Way
• Cosmography and cosmic acceleration
• Constraining the dark energy statefinder hierarchy in a kinematic approach
• A cosmographic analysis of the transition to acceleration using SN-Ia and BAO
• Solitons in supersymmetric sigma-models with torsion
• Palatini formulation of modified gravity with squared scalar curvature
• {\it Gauging} the cosmic acceleration with recent type Ia supernovae data sets
• Backreaction and FRW consistency conditions
• Testing Lambda and the Limits of Cosmography with the Union2.1 Supernova Compilation
• How can we tell whether dark energy is composed by multiple fields?
• What do the cosmological supernova data really tell us?
• Limits on the Reconstruction of a Single Dark Energy Scalar Field Potential from SNe Ia Data
• Emerging the dark sector from thermodynamics of cosmological systems with constant pressure
• Torsion gravity with non-minimally coupled fermionic field: some cosmological models
• Minimal cosmography
• Constraining f(R) theories with cosmography
• Constraints on kinematic parameters at $z\ne 0$
• Angular distribution of cosmological parameters as a probe of inhomogeneities: a kinematic parametrisation
• New Cosmographic Constraints on the Dark Energy and Dark Matter Coupling
• Hubble drift in Palatini $f(\mathcal{R})$-theories

Cited by in corpus (201)

• Teleparallel Gravity: From Theory to Cosmology
• Kinematic reconstructions of extended theories of gravity at small and intermediate redshifts
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Energy Conditions in $f(Q)$ gravity
• A Simple Phenomenological Emergent Dark Energy Model can Resolve the Hubble Tension
• Accelerated Expansion of the Universe in Non-minimally Coupled Gravity
• Cosmography in $f(Q)$ gravity
• High-redshift cosmography: auxiliary variables versus Padé polynomials
• Model-independent reconstruction of $f(T)$ gravity from Gaussian Processes
• Noether symmetries in Symmetric Teleparallel Cosmology
• Barrow holographic dark energy with Hubble horizon as IR cutoff
• The role of the boundary term in $f(Q,B)$ symmetric teleparallel gravity
• Cosmography and flat $\Lambda$CDM tensions at high redshift
• A deep learning approach to cosmological dark energy models
• Cosmological parameter analyses using transversal BAO data
• Probing observational bounds on scalar-tensor theories from standard sirens
• Dynamical system analysis of generalized energy-momentum-squared gravity
• Evidence for Emergent Dark Energy
• Measurements of $H_0$ in modified gravity theories: The role of lensed quasars in the late-time Universe
• Healing the cosmological constant problem during inflation through a unified quasi-quintessence matter field
• Non-Local Gravity Cosmology: an Overview
• Measurements of $H_0$ and reconstruction of the dark energy properties from a model-independent joint analysis
• Dawn of the dark: unified dark sectors and the EDGES Cosmic Dawn 21-cm signal
• f(G) Noether cosmology
• Updating constraints on f(T) teleparallel cosmology and the consistency with Big Bang Nucleosynthesis
• Einstein, Planck and Vera Rubin: relevant encounters between the Cosmological and the Quantum Worlds
• Solar System Tests in Modified Teleparallel Gravity
• The mass-radius relation for neutron stars in $f(R)=R+\alpha R^2$ gravity: a comparison between purely metric and torsion formulations
• Addressing the cosmological $H_0$ tension by the Heisenberg uncertainty
• Gaussian processes and effective field theory of $f(T)$ gravity under the $H_0$ tension
• Thermodynamical correspondence of $f(R)$ gravity in Jordan and Einstein frames
• Forecasting constraints on deviations from general relativity in $f(Q)$ gravity with standard sirens
• Connecting early and late epochs by f(z)CDM cosmography
• Constraining Teleparallel Gravity through Gaussian Processes
• Testing Modified Gravity with Wide Binaries in GAIA DR2
• Neutrino oscillations in extended theories of gravity
• Unveiling cosmography from the dark energy equation of state
• Kinematic constraints beyond $z\simeq 0$ using calibrated GRB correlations
• Cosmographic parameters in model-independent approaches
• Non-Local Gravity Wormholes
• Tracing dark energy history with gamma ray bursts
• Cosmography by orthogonalized logarithmic polynomials
• Cosmological perfect fluids in Gauss-Bonnet gravity
• Forecast constraints on $f(T)$ gravity with gravitational waves from compact binary coalescences
• Quintessence Behaviour of an Anisotropic Bulk Viscous Cosmological Model in Modified $f(Q)$-Gravity
• High-redshift cosmography: Application and comparison with different methods
• Alleviating the cosmological constant problem from particle production
• Viability of Bianchi type V Universe in $f(R,T)=f_1(R)+f_2(R)f_3(T)$ gravity
• Observational Constraints and Cosmological Implications of Scalar-Tensor $f(R,T)$ Gravity
• Gauge invariant formulation of gravitational waves in metric $f(R)$ gravity
• Swampland conjecture in $f(R)$ gravity by the Noether Symmetry Approach
• Late time acceleration due to generic modification of gravity and Hubble tension
• Constraints on the transition redshift from the calibrated Gamma-ray Burst $E_{\mathrm{p}}$-$E_{\mathrm{iso}}$ correlation
• Accretion disk luminosity for black holes surrounded by dark matter with tangential pressure
• Cosmological perfect fluids in higher-order gravity
• Noether Symmetries and Quantum Cosmology in Extended Teleparallel Gravity
• Early and late time cosmology: the $f(R)$ gravity perspective
• Bouncing Models in an Extended Gravity Theory
• Late-time constraints on modified Gauss-Bonnet cosmology
• Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies
• Holographic dark energy from the laws of thermodynamics with Rényi entropy
• Forecasts on the speed of gravitational waves at high $z$
• $F(R)$ Gravity with an Axion-like Particle: Dynamics, Gravity Waves, Late and Early-time Phenomenology
• Tensions with the flat $\mathbf{\Lambda }$CDM model from high-redshift cosmography
• Cosmographic analysis of redshift drift
• Energy Conditions in Non-minimally Coupled $f(R,T)$ Gravity
• Can high-redshift Hubble diagrams rule out the standard model of cosmology in the context of cosmographic method?
• Estimating the Parameters of Extended Gravity Theories with the Schwarzschild Precession of S2 Star
• Exploiting the Einstein Telescope to solve the Hubble tension
• The emergence of universal relations in the AdS black holes thermodynamics
• Anisotropic constant-roll inflation with noncommutative model and swampland conjectures
• Modeling Transit Dark Energy in $f(R,L_m)$-gravity
• Cosmographic view on the $H_0$ and ${\sigma }_8$ tensions
• Dark Energy as a Critical Phenomenon: a Resolution for Hubble Tension
• Testing the violation of the equivalence principle in the electromagnetic sector and its consequences in $f(T)$ gravity
• Attractor behaviour of $f(T)$ modified gravity and the cosmic acceleration
• Modelling the Accelerating Universe with $f(Q)$ Gravity: Observational Consistency
• Is Dark Energy Dynamical in the DESI Era? A Critical Review
• Cosmographic analysis of a closed bouncing universe with the varying cosmological constant in $f(R,T)$ gravity
• Revisiting the Hubble constant, spatial curvature and cosmography with time-delay and cosmic chronometer observations
• Neural Network Reconstruction of $H^{\prime }(z)$ and its application in Teleparallel Gravity
• Tracing the cosmic history by Gauss-Bonnet gravity
• Induced gravity effect on inflationary parameters in an holographic cosmology
• Inflationary entanglement
• Prospects for measuring dark energy with 21 cm intensity mapping experiments: A joint survey strategy
• Questioning the $H_0$ tension via the look-back time
• Dynamical systems of modified Gauss-Bonnet gravity: cosmological implications
• Flat connection for rotating vacuum spacetimes in extended teleparallel gravity theories
• Cosmic evolution of the logarithmic f(R) model and the dS swampland conjecture
• Structure of neutron stars in massive scalar-tensor gravity
• Running vacuum versus Holographic dark energy: a cosmographic comparison
• Boson stars in $f(T)$ extended theory of gravity
• Neural networks and standard cosmography with newly calibrated high redshift GRB observations
• The classical and quantum implications of the Raychaudhuri Equation in f(T)-gravity
• Black hole thermodynamics from logotropic fluids
• The Raychaudhuri Equation in inhomogeneous FLRW space-time : A $f(R)$-gravity model
• The Heisenberg limit at cosmological scales
• Machine Learning and cosmographic reconstructions of quintessence and the Swampland conjectures
• Testing cosmic anisotropy with Pade approximation and Pantheon+ sample
• A critical discussion on the $H_0$ tension
• Cosmological evolution with quadratic gravity and nonideal fluids
• BBN Constraints on $f(Q,T)$ Gravity
• Thermodynamic Topology of Kiselev-AdS Black Holes within f (R, T) gravity
• Searching for modified gravity in the astrophysical gravitational wave background: Application to ground-based interferometers
• Inverse Cosmography: testing the effectiveness of cosmographic polynomials using machine learning
• Observational Constraints on Hybrid Scale Factor in f(Q,T) Gravity with Anisotropic Space-Time
• Parity violation in gravitational waves and observational bounds from third-generation detectors
• High-redshift cosmography with a possible cosmic distance duality relation violation
• Phase-space analysis of dark energy models in non-minimally coupled theories of gravity
• Constraining primordial black holes as a fraction of dark matter through accretion disk luminosity
• A preference for dynamical phantom dark energy using one-parameter model with Planck, DESI DR1 BAO and SN data
• Estimating the parameters of Hybrid Palatini gravity model with the Schwarzschild precession of S2, S38 and S55 stars: case of bulk mass distribution
• String-inspired Teleparallel Cosmology
• Teleparallel theory as a gauge theory of translations: comments and issues
• Model-Independent Determination of $H_0$ and ${\Omega }_{K,0}$ using Time-Delay Galaxy Lenses and Gamma-Ray Bursts
• Constraining $f(T,B)$ teleparallel gravity from energy conditions
• Diagnosing the R$\acute{e}$nyi Holographic Dark Energy model in a flat Universe
• $R^2$-gravity quark stars from perturbative QCD
• Geometric and topological corrections to Schwarzschild black hole
• Raychaudhuri equation in scalar-tensor theory
• Exploring departures from Schwarzschild black hole in $f(R)$ gravity
• Wyman's "other" scalar field solution, Sultana's generalization, and their Brans-Dicke and $R^2$ relatives
• Circular geodesics in the field of double-charged dilatonic black holes
• The classical and quantum fate of the Little Sibling of the Big Rip in $f(R)$ cosmology
• Gravitational metamaterials from optical properties of spacetime media
• Role of spatial curvature in the primordial gravitational wave power spectrum
• Anisotropic cosmological dynamics in $f(T)$ gravity in the presence of a perfect fluid
• Joint Constraints on the Hubble Constant, Spatial Curvature, and Sound Horizon from the Late-time Universe with Cosmography
• Repulsive regions in Lemaître-Tolman-Bondi gravitational collapse
• A generalized $\Lambda$CDM model with parameterized Hubble parameter in particle creation, viscous and $f(R)$ model framework
• Renyi Holographic Dark Energy models in Teleparallel gravity
• Cosmological Tests of Gravity: A Future Perspective
• $f(Q,T)$ gravity: From early to late-time cosmic acceleration
• Implications of JLA data for $k-$essence model of dark energy with given equation of state
• Dynamical features of $f(T,B)$ cosmology
• Collapse in $f(R)$ gravity and the method of $R$ matching
• The Gauss-Bonnet topological scalar in the Geometric Trinity of Gravity
• Breaking the baryon-dark matter degeneracy in a model-independent way through the Sunyaev-Zeldovich effect
• Cosmography using strong lensing systems and cosmic chronometers
• Impact of curvature based geometric constraints on $F(R)$ theory
• Exploring the inflation of $F(R)$ gravity
• Gravitational baryogenesis in non-minimal kinetic coupling model
• Assessing the foundation and applicability of some dark energy fluid models in the Dirac-Born-Infeld framework
• Bouncing cosmological models in a functional form of F(R) gravity
• Cosmic acceleration and ekpyrotic bounce with Chameleon field
• Geometrically contracted structure in teleparallel $f(T)$ gravity
• Reconstructions of $f(\mathcal{P})$ and $f(\mathcal{Q})$ gravity models from $(m,n)$-type Barrow Holographic Dark Energy: Analysis and Observational Constraints
• Velocity distribution of elliptical galaxies in the framework of Non-local Gravity model
• Possible effects of Hybrid Gravity on stellar kinematics in elliptical galaxies
• Does emergent scenario in Hořava-Lifshitz Gravity demand a ghost field?
• Cosmological dynamics of f(R) models in dynamical system analysis
• Unveiling the Universe with Emerging Cosmological Probes
• Addressing the $H_0$ tension through matter with pressure and no early dark energy
• Constrained transit cosmological models in $f(R,L_m,T)$-gravity
• A complete study of conformally flat pseudo-symmetric spacetimes in the theory of F(R)-gravity
• Recovering the cosmological constant from affine geometry
• Teleparallel gravity as a gauge theory: coupling to matter with Cartan connection
• Characterizations of Perfect fluid spacetimes obeying $f(\mathcal{R})$-gravity equipped with different gradient solitons
• Cosmography of the minimally extended Varying Speed of Light Model
• Pseudo generalized Ricci-recurrent spacetimes with certain applications to modified gravity
• Entanglement production in Einstein-Cartan theory
• Note on Dark Energy and Cosmic Transit in a scale-invariance cosmology
• Bias of reconstructing the dark energy equation of state from the Pad$\acute{e}$ cosmography
• On the convergence of cosmographic expansions in Lemaitre-Tolman-Bondi models
• Teleparallel dark energy in a nonflat universe
• Fab-Four cosmography to tackle the Hubble tension
• Another look on the connections of Hubble tension with the Heisenberg Uncertainty Principle
• Bayesian deep learning for dark energy
• Cartan approach to Teleparallel Equivalent to General Relativity: a review
• Study of thermal stability for different dark energy models
• Some cosmological features of 4D Gauss-Bonnet gravity with varying cosmological constant
• Reconstructions of Einstein-Aether Gravity from Barrow Agegraphic and New Barrow Agegraphic Dark Energy models: Examinations and Observational Limits
• Cosmological model with Gong-Zong Parametrization in $f(R,L_m)$ gravity
• Can the NANOGrav observations constrain the geometry of the universe?
• Lyra's cosmology of homogeneous and isotropic universe in Brans-Dicke theory
• A new analytical approximation of luminosity distance by optimal HPM-Padé technique
• Characterizing the equivalence between dark energy and radiation using gamma-ray bursts
• Determining $H_0$ from distance sum rule combining gamma-ray bursts with observational Hubble data and strong gravitational lensing
• Cosmology from a running vacuum model driven by a scalar field
• Revisiting the Hubble constant, sound horizon and cosmography from late-time Universe observations
• Logarithmic and Strong Coupling Models in Weyl-Type $f(Q,T)$ Gravity
• Linear perturbations spectra for dynamical dark energy inspired by modified gravity
• Dynamical Systems Analysis of $f(R,L_m)$ Gravity Model
• Energy Conditions in $f(P)$ Gravity
• Focusing conditions for extended teleparallel gravity theories
• Some aspects of modified theory of gravity in Palatini formalism unveiled
• Traversable wormholes in $f(R)$ gravity sourced by a cloud of strings
• Linear and nonlinear clusterings of Horndeski-inspired dark energy models with fast transition
• Quintessence dark energy model in non-linear $f(Q)$ theory with bulk-viscosity
• From minimal-length quantum theory to modified gravity
• A semi-cosmographic approach to study cosmological evolution in phase space
• Model independent reconstruction of cosmological accelerated-decelerated phase
• Effects of non-vanishing dark matter pressure in the Milky Way galaxy
• Effects of dynamical friction on perturbations for evolving dark energy
• The $f(Q)$ gravity and affine EoS: Compatibility and observational constraints
• The spacetime geodesy of perfect fluid spheres
• Constraints on Energy Conditions in $f(R,L_m)$ Gravity
• Evolution of matter perturbations in the context of cosmic slowing down
• The dynamics of background evolution and structure formation in phase space: a semi-cosmographic reconstruction
• Intermediate redshift calibration of Gamma-ray Bursts and cosmic constraints in non-flat cosmology
• Dynamics of quasi de Sitter and linear combination of exponential models in extended gravity