[HTML][HTML] Cosmological observational constraints on the power law f (Q) type modified gravity theory

S Mandal, S Pradhan, PK Sahoo, T Harko - The European Physical …, 2023 - Springer
In modern cosmology, the curiosity of ultimately understanding the nature of the dark energy
controlling the recent acceleration of the Universe motivates us to explore its properties by …

Wormhole solutions in f (R, Lm) gravity

R Solanki, Z Hassan, PK Sahoo - Chinese Journal of Physics, 2023 - Elsevier
In this work, we intend to explore wormhole geometries in the framework of f (R, L m) gravity.
We derive the field equations for the generic f (R, L m) function by assuming the static and …

Dark matter as a Weyl geometric effect

P Burikham, T Harko, K Pimsamarn, S Shahidi - Physical Review D, 2023 - APS
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 …

Constrained evolution of effective equation of state parameter in non-linear f R, L m dark energy model: insights from Bayesian analysis of cosmic chronometers and …

N Myrzakulov, M Koussour, AHA Alfedeel… - The European Physical …, 2023 - Springer
We conduct a Bayesian analysis of recent observational datasets, specifically the Cosmic
Chronometers (CC) dataset and Pantheon samples, to investigate the evolution of the EoS …

Constructing traversable wormhole solutions in f (R, Lm) theory

T Naseer, M Sharif, A Fatima, S Manzoor - Chinese Journal of Physics, 2023 - Elsevier
This paper aims to explore the viable and stable geometry of traversable wormholes in the
framework of f (R, L m) theory. For this purpose, we build a shape function using the …

Compact stellar structures in Weyl geometric gravity

Z Haghani, T Harko - Physical Review D, 2023 - APS
We consider the structure and physical properties of specific classes of neutron, quark, and
Bose-Einstein condensate stars in the conformally invariant Weyl geometric gravity theory …

Investigating the dark energy phenomenon in f (R, Lm) cosmological models with observational constraints

S Myrzakulova, M Koussour, N Myrzakulov - Physics of the Dark Universe, 2024 - Elsevier
This paper explores the dark energy phenomenon within the context of f (R, L m) gravity
theory. Two specific non-linear f (R, L m) models are considered: f (R, L m)= R 2+ L m α and f …

Conformal gravitational theories in Barthel–Kropina-type Finslerian geometry, and their cosmological implications

R Hama, T Harko, SV Sabau - The European Physical Journal C, 2023 - Springer
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 …

Semi-Symmetric Metric Gravity: From the Friedmann–Schouten geometry with torsion to dynamical dark energy models

L Csillag, T Harko - Physics of the Dark Universe, 2024 - Elsevier
In this paper, we develop a geometric generalization of General Relativity based on the semi-
symmetric metric connection introduced by Friedmann and Schouten in 1924. Although the …

Testing Weyl geometric gravity with the SPARC galactic rotation curves database

M Crăciun, T Harko - Physics of the Dark Universe, 2024 - Elsevier
We present a detailed investigation of the properties of the galactic rotation curves in the
Weyl geometric gravity model, in which the gravitational action is constructed from the …