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Article
Open AccessNeural network reconstruction of cosmology using the Pantheon compilation
In this work, we reconstruct the Hubble diagram using various data sets, including correlated ones, in artificial neural networks (ANN). Using ReFANN, that was built for data sets with independent uncertainti...
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Article
Open AccessQuasiperiodic oscillations around hairy black holes in Horndeski gravity
Testing gravity theories and their parameters using observations is an important issue in relativistic astrophysics. In this context, we investigate the motion of test particles and their harmonic oscillations...
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Article
Open AccessPerturbations in non-flat cosmology for f(T) gravity
The study of cosmological perturbation theory in f(T) gravity is a topic of great interest in teleparallel gravity since this is one of the simplest generalizations of the theory that modifies the teleparallel eq...
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Article
Open AccessClassification of teleparallel Horndeski cosmology via Noether symmetries
Teleparallel Horndeski theory offers an avenue through which to circumvent the speed constraint of gravitational waves in an efficient manner. However, this provides an even larger plethora of models due to th...
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Teleparallel Gravity: Foundations and Cosmology
Among the large class of modified gravity theories, teleparallel gravity theories are distinguished by the fact that they express gravity by the torsion of a flat (curvature-free), metric-compatible connection...
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Article
Open AccessNoether symmetries in symmetric teleparallel cosmology
We consider a general theory of all possible quadratic, first-order derivative terms of the non-metricity tensor in the framework of Symmetric Teleparallel Geometry. We apply the Noether Symmetry Approach to c...
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Article
Open AccessClassification of the Horndeski cosmologies via Noether symmetries
Adopting Noether point symmetries, we classify and integrate dynamical systems coming from Horndeski cosmologies. The method is particularly effective both to select the form of Horndeski models and to derive ...
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Article
Open AccessConstraining generalized non-local cosmology from Noether symmetries
We study a generalized non-local theory of gravity which, in specific limits, can become either the curvature non-local or teleparallel non-local theory. Using the Noether symmetry approach, we find that the c...
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Article
Open AccessNoether symmetries in Gauss–Bonnet-teleparallel cosmology
A generalized teleparallel cosmological model, \(f(T_\mathcal {G},T)\) ...