Raychaudhuri equation in the Finsler-Randers spacetime and Generalized scalar-tensor theories

2016/12/14 by P. C. Stavrinos, Stavrinos, Panayiotis C., Maria Alexiou +1
Physics and Astronomy · #Advanced Differential Geometry Research #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc)

paper · pdf · doi:10.48550/arxiv.1612.04554

openalex publication_date 2016/12/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this work, we obtain the Raychaudhuri equations for various types of Finsler spaces as the Finsler-Randers (FR) space-time and in a more general geometrical structure of the space-time manifold which contains two fibres that are two scalars which represent inflaton fields ϕ⁽¹⁾, ϕ⁽²⁾.In addition, the energy-conditions are studied in a FR cosmology and are correlated with FRW model. Finally an application of Raychaudhuri equation for the model M × \ ϕ⁽¹⁾ \ × \ ϕ⁽²⁾ \ with M a FRW space is given.

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