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arxiv: 1707.03189 · v1 · pith:OQXFHBXDnew · submitted 2017-07-11 · 🌀 gr-qc

Some Exact Solutions in f(mathcal{G},T) Gravity via Noether Symmetries

classification 🌀 gr-qc
keywords gravitymathcalgauss-bonnetmodelsmodifiednoetherexactproposed
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This paper is devoted to investigate the recently proposed modified Gauss-Bonnet $f(\mathcal{G},T)$ gravity, with $\mathcal{G}$, the Gauss-Bonnet term, coupled with ${T}$, the trace of energy-momentum tensor. We have used the Noether symmetry methodology to discuss some cosmologically important $f(\mathcal{G},T)$ gravity models with anisotropic background. In particular, the Noether symmetry equations for modified $f(\mathcal{G},T)$ gravity are reported for locally rotationally symmetric Bianchi type $I$ universe. Explicitly, two models have been proposed to explore the exact solutions and the conserved quantities. It is concluded that the specific models of modified Gauss-Bonnet gravity may be used to reconstruct $\Lambda$CDM cosmology without involving any cosmological constant.

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