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Modified Gravity and Cosmology: An Update by the CANTATA Network
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In: https://hal.archives-ouvertes.fr/hal-03261155 ; 2021 (2021)
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Neural Network Reconstruction of Late-Time Cosmology and Null Tests ...
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Modified Gravity and Cosmology: An Update by the CANTATA Network ...
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Classification of Teleparallel Horndeski Cosmology via Noether Symmetries ...
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Gravitational Wave Propagation and Polarizations in the Teleparallel analog of Horndeski Gravity ...
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Primordial black holes in a dimensionally oxidizing Universe ...
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Higher dimensional static and spherically symmetric solutions in extended Gauss-Bonnet gravity ...
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Abstract:
We study a theory of gravity of the form $f(\mathcal{G})$ where $\mathcal{G}$ is the Gauss-Bonnet topological invariant without considering the standard Einstein-Hilbert term as common in the literature, in arbitrary $(d+1)$ dimensions. The approach is motivated by the fact that, in particular conditions, the Ricci curvature scalar can be easily recovered and then a pure $f(\cal G)$ gravity can be considered a further generalization of General Relativity like $f(R)$ gravity. Searching for Noether symmetries, we specify the functional forms invariant under point transformations in a static and spherically symmetric spacetime and, with the help of these symmetries, we find exact solutions showing that Gauss-Bonnet gravity is significant without assuming the Ricci scalar in the action. ... : 10 pages ...
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Keyword:
FOS Physical sciences; General Relativity and Quantum Cosmology gr-qc; High Energy Physics - Theory hep-th
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URL: https://arxiv.org/abs/1911.03554 https://dx.doi.org/10.48550/arxiv.1911.03554
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Exact spherically symmetric solutions in modified Gauss-Bonnet gravity from Noether symmetry approach ...
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Classification of the Horndeski cosmologies via Noether Symmetries ...
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Noether Symmetries as a geometric criterion to select theories of gravity ...
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Classification of the Horndeski cosmologies via Noether symmetries
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Cosmological production of black holes: a way to constrain alternative theories of gravity ...
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Constraining Generalized Non-local Cosmology from Noether Symmetries ...
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Constraining generalized non-local cosmology from Noether symmetries
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The maximum sizes of large scale structures in alternative theories of gravity ...
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