From dual connections to gravitational field equations -- the curvature and Einstein tensors of the $α$ - connection of a quasi-statistical manifold

Fuente: arXiv
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Auteurs principaux: Hama, Rattanasak, Harko, Tiberiu, Sabau, Sorin V.
Format: Preprint
Publié: 2026
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author Hama, Rattanasak
Harko, Tiberiu
Sabau, Sorin V.
author_facet Hama, Rattanasak
Harko, Tiberiu
Sabau, Sorin V.
contents We present a detailed review of the mathematical foundations of the theory of the statistical and quasi-statistical manifolds, which recently have found many applications in general relativity, quantum mechanics, and mathematical statistics. In particular, we fully develop, in a rigorous and coherent way, the formulas and concepts necessary for the understanding of the mathematical basis of the statistical and quasi-statistical manifolds, including the properties of the dual connections and of the equiaffine connections. For each geometrical structure the explicit expressions of the curvatures and the Einstein tensors are explicitly obtained. As possible applications to the field of gravitational theories we explicitly compute the curvatures of a family of $α$-connections {$\nabla^{(α)}:=\frac{1+α}{2}\nabla +\frac{1-α}{2}\nabla ^{*}$, where $\nabla :=\nabla ^{(1)}$ and $\nabla ^{*}:=\nabla ^{(-1)}$ } are the dual connections of a quasi-statistical manifold $M$. The Einstein vacuum field equations are also written down, and the physical relevance of the obtained results for gravity and cosmology is briefly discussed.
format Preprint
id arxiv_https___arxiv_org_abs_2605_23968
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle From dual connections to gravitational field equations -- the curvature and Einstein tensors of the $α$ - connection of a quasi-statistical manifold
Hama, Rattanasak
Harko, Tiberiu
Sabau, Sorin V.
Differential Geometry
High Energy Physics - Theory
Mathematical Physics
We present a detailed review of the mathematical foundations of the theory of the statistical and quasi-statistical manifolds, which recently have found many applications in general relativity, quantum mechanics, and mathematical statistics. In particular, we fully develop, in a rigorous and coherent way, the formulas and concepts necessary for the understanding of the mathematical basis of the statistical and quasi-statistical manifolds, including the properties of the dual connections and of the equiaffine connections. For each geometrical structure the explicit expressions of the curvatures and the Einstein tensors are explicitly obtained. As possible applications to the field of gravitational theories we explicitly compute the curvatures of a family of $α$-connections {$\nabla^{(α)}:=\frac{1+α}{2}\nabla +\frac{1-α}{2}\nabla ^{*}$, where $\nabla :=\nabla ^{(1)}$ and $\nabla ^{*}:=\nabla ^{(-1)}$ } are the dual connections of a quasi-statistical manifold $M$. The Einstein vacuum field equations are also written down, and the physical relevance of the obtained results for gravity and cosmology is briefly discussed.
title From dual connections to gravitational field equations -- the curvature and Einstein tensors of the $α$ - connection of a quasi-statistical manifold
topic Differential Geometry
High Energy Physics - Theory
Mathematical Physics
url https://arxiv.org/abs/2605.23968