Non-metricity with boundary terms: 𝖿 (𝖰, 𝖢) gravity and cosmology

A De, TH Loo, EN Saridakis - Journal of Cosmology and …, 2024 - iopscience.iop.org
We formulate f (Q, C) gravity and cosmology. Such a construction is based on the symmetric
teleparallel geometry, but apart form the non-metricity scalar Q we incorporate in the …

Data reconstruction of the dynamical connection function in f(Q) cosmology

Y Yang, X Ren, B Wang, YF Cai… - Monthly Notices of the …, 2024 - academic.oup.com
We employ Hubble data and Gaussian Processes in order to reconstruct the dynamical
connection function in cosmology beyond the coincident gauge. In particular, there exist …

General parallel cosmology

DA Gomes, JB Jiménez… - Journal of Cosmology and …, 2023 - iopscience.iop.org
General (tele) parallel Relativity, G∥ R, is the relativistic completion of Einstein's theories of
gravity. The focus of this article is the derivation of the homogeneous and isotropic solution …

Exploring the stability of cosmology near general relativity limit with different connections

MJ Guzmán, L Järv, L Pati - Physical Review D, 2024 - APS
In this work, we study cosmological spacetime configurations in f (Q) gravity with
nonvanishing symmetric teleparallel connections. It is known that the spatially flat …

Minisuperspace description of f (Q)-cosmology

A Paliathanasis, N Dimakis… - Physics of the Dark …, 2024 - Elsevier
We investigate the existence of minisuperspace description for the homogeneous
cosmological field equations within the framework of symmetric teleparallel f (Q)-gravity. We …

Observational Test of f (Q) Gravity with Weak Gravitational Lensing

Q Wang, X Ren, YF Cai, W Luo… - The Astrophysical …, 2024 - iopscience.iop.org
In this article we confront a class of f (Q) gravity models with observational data of galaxy–
galaxy lensing. Specifically, we consider f (Q) gravity models containing a small quadratic …

Stability of symmetric teleparallel scalar-tensor cosmologies with alternative connections

L Järv, L Pati - Physical Review D, 2024 - APS
In symmetric teleparallel geometry the curvature and torsion tensors are assumed to vanish
identically, while the dynamics of gravity is encoded by nonmetricity. Here the spatially …

f (T) cosmology in the regime of quasar observations

R Sandoval-Orozco, C Escamilla-Rivera, R Briffa… - Physics of the Dark …, 2024 - Elsevier
The open problems related to cosmological tensions in current times have opened new
paths to study new probes to constrain cosmological parameters in standard and extended …

[HTML][HTML] Nonzero spatial curvature in symmetric teleparallel cosmology

A Paliathanasis - Physics of the Dark Universe, 2023 - Elsevier
We consider the symmetric teleparallel f Q-gravity in Friedmann–Lemaître–Robertson–
Walker cosmology with nonzero spatial curvature. For a nonlinear f Q model there exist …

Dynamical system analysis of LRS-BI Universe with f (Q) gravity theory

P Sarmah, UD Goswami - Physics of the Dark Universe, 2024 - Elsevier
Considering the Universe as a dynamic system, the understanding of its evolution is an
interesting aspect of study in cosmology. Here, we investigate the anisotropic locally …