Search Results - "Friedmann equations"

Cosmological test of a length-preserving biconnection gravity.

Authors: Mhamdi, D. Bouali, A. Ouali, T. et al.

Source: European Physical Journal C -- Particles & Fields. May2026, Vol. 86 Issue 5, p1-17. 17p.

Subjects: Friedmann equations, Dark energy, Expanding universe, Physical cosmology

Geometric Cosmology Models: Statistical Analysis with Observational Data.

Authors: Leizerovich, Matías Jaime, Luisa G. Landau, Susana J. et al.

Source: Universe (2218-1997). May2026, Vol. 12 Issue 5, p129. 21p.

Finsler-Randers-Bianchi Type-V Cosmological Model and Modified f (R , T) Gravity in Lyra Geometry.

Authors: Kumar, Sachin Dwivedi, Praduman Kumar Mishra, Chayan Kumar et al.

Source: Universe (2218-1997). Apr2026, Vol. 12 Issue 4, p100. 34p.

Late time cosmic acceleration in a novel f(R) gravity theory with dynamic stability, thermodynamic consistency and screening mechanisms.

Authors: Sivakumar, C¹ (AUTHOR) sivakumar@maharajas.ac.in

Source: Journal of Astrophysics & Astronomy. 3/24/2026, Vol. 47 Issue 1, p1-28. 28p.

Subjects: Dark energy, Friedmann equations, Expanding universe, Thermal equilibrium, Physical cosmology, Gravitation

Cosmology in the De Donder–Weyl formulation of Einstein–Cartan gravity.

Authors: Shah, Aarav Khlopov, Maxim Krasnov, Maxim

Source: European Physical Journal C -- Particles & Fields. Feb2026, Vol. 86 Issue 2, p1-11. 11p.

Subjects: Friedmann equations, Torsion, Expanding universe, Einstein, Albert, 1879-1955, Physical cosmology, Gravitation

Минималды емес f(R,T) гравитациясында баяулау параметрін дивергенциясыз параметрлеу және энергия шарттары.

Alternate Title: Energy conditions in non-minimal f (R, T) gravity with a divergence-free parameterization of the deceleration parameter.
Бездивергентная параметризация параметра замедления и энергетические условия в неминимальной f(R, T) гравитации.

Authors: Жадыранова, А. А. Исмаил, Ү. Қ. Сноу, У. М. et al.

Source: Bulletin of the L.N. Gumilyov Eurasian National University. Physics. Astronomy Series. 2026, Vol. 154 Issue 1, p18-36. 19p.

Testing Running Vacuum Energy in f (Q) Gravity with DESI Data.

Authors: Mhamdi, Dalale El Ouardi, Redouane Errahmani, Ahmed et al.

Source: Universe (2218-1997). Jan2026, Vol. 12 Issue 1, p25. 19p.

Late-time cosmological constraints on Kaniadakis holographic dark energy.

Authors: Luciano, Giuseppe Gaetano Paliathanasis, Andronikos

Source: European Physical Journal C -- Particles & Fields. Dec2025, Vol. 85 Issue 12, p1-11. 11p.

Subjects: Dark energy, Friedmann equations, Bayesian analysis, Type I supernovae, Physical cosmology

Cosmic Expansion Driven by Barrow Entropy.

Authors: Karabat, M. F.¹, mfarukkarabat@gmail.com

Source: International Journal of Thermodynamics; Dec2025, Vol. 28 Issue 4, p250-255, 6p

Quantum-Corrected Brans–Dicke cosmology.

Authors: Bhandari, Gaurav Pathak, S. D. Sharma, Manabendra

Source: International Journal of Geometric Methods in Modern Physics. Dec2025, Vol. 22 Issue 14, p1-16. 16p.

Logarithmic f(Q) gravity with parametrization of deceleration parameter and energy conditions.

Authors: Bayaskar, S. N. Shoeb, A. A. Q. Dhanagare, A. A. et al.

Source: Journal of Astrophysics & Astronomy. 9/9/2025, Vol. 46 Issue 2, p1-10. 10p.

Subjects: Friedmann equations, Universe, Hubble constant, Stability theory, Expanding universe, Acceleration (Mechanics), Type I supernovae

Higgs mechanism for the Ashtekar self-dual connection.

Authors: Alexandre, Bruno¹ (AUTHOR) bruno.alexandre20@imperial.ac.uk

Source: European Physical Journal C -- Particles & Fields. Jul2025, Vol. 85 Issue 7, p1-7. 7p.

Subjects: Friedmann equations, Gravitational waves, Metaphysical cosmology, Mathematical physics, Cosmological constant

Toward a relativistic cosmology in electromagnetic universe.

Authors: Hammami, Nadjima Belabbas, Abdelmoumene Bouda, Ahmed

Source: International Journal of Geometric Methods in Modern Physics. Jun2026, Vol. 23 Issue 7, p1-27. 27p.

Subjects: Friedmann equations, Equivalence principle (Physics), Physical cosmology, Einstein field equations, Cosmological distances, Relativistic energy, Einstein, Albert, 1879-1955

A two-field dark energy model with cubic contractions of the Riemann tensor.

Authors: Marciu, Mihai, mihai.marciu@drd.unibuc.ro

Source: Canadian Journal of Physics; 2023, Vol. 101 Issue 9, p460-470, 11p

The Effects of the Gravitational Coupling Variation on the Local H 0 Estimation.

Authors: Romano, Antonio Enea^1,2 (AUTHOR)

Source: Universe (2218-1997). Aug2025, Vol. 11 Issue 8, p278. 15p.

Elko as an inflaton candidate.

Authors: Chen, Xinglong Lee, Cheng-Yang Ma, Yanjiao et al.

Source: European Physical Journal C -- Particles & Fields. Jun2025, Vol. 85 Issue 6, p1-9. 9p.

Subjects: Scalar field theory, Friedmann equations, Equations of motion, Fermions, Spacetime

Observational constraints on anisotropic cosmology and dark energy in Finsler–Kropina models.

Authors: Praveen, J. Narasimhamurthy, S. K.

Source: Astrophysics & Space Science. Jan2026, Vol. 371 Issue 1, p1-18. 18p.

Subjects: Friedmann equations, Finsler geometry, Physical cosmology, Hubble constant, Dark energy, Expanding universe

Divergence-free deceleration and energy conditions in non-minimal f(R,T) gravity.

Authors: Zhadyranova, A. Koussour, M. Kanibekova, Zh. et al.

Source: International Journal of Geometric Methods in Modern Physics. Feb2026, Vol. 23 Issue 2, p1-17. 17p.

Subjects: Hubble constant, Friedmann equations, Gravitation, Physical laws, Expanding universe, Acceleration (Mechanics)

Differing Manifestations of Spatial Curvature in Cosmological FRW Models.

Authors: Shimon, Meir Rephaeli, Yoel

Source: Universe (2218-1997). May2025, Vol. 11 Issue 5, p143. 15p.

Braneworld Cosmology with a non-minimally Coupled Scalar Field and Palatini Bulk Gravity.

Authors: Alimoradi, Mojtaba Azizi, Tahereh Rashidi, Narges

Source: Iranian Journal of Astronomy & Astrophysics. Spring2025, Vol. 12 Issue 2, p127-142. 16p.