Statistical Geometry and Hessian Structures on Pre-Leibniz Algebroids

TL;DR

This paper extends statistical and Hessian geometric structures to anti-commutable pre-Leibniz algebroids, broadening the framework for differential geometry on various physically motivated algebroids.

Contribution

It introduces and develops statistical, conjugate, and Hessian structures on anti-commutable pre-Leibniz algebroids, generalizing classical geometric concepts to a wider algebraic setting.

Findings

Statistical and conjugate structures are equivalent for admissible connections.

Hessian metrics can be generalized for projected-torsion-free connections.

A generalized fundamental theorem of statistical geometry is established.

Abstract

We introduce statistical, conjugate connection and Hessian structures on anti-commutable pre-Leibniz algebroids. Anti-commutable pre-Leibniz algebroids are special cases of local pre-Leibniz algebroids, which are still general enough to include many physically motivated algebroids such as Lie, Courant, metric and higher-Courant algebroids. They create a natural framework for generalizations of differential geometric structures on a smooth manifold. The symmetrization of the bracket on an anti-commutable pre-Leibniz algebroid satisfies a certain property depending on a choice of an equivalence class of connections which are called admissible. These admissible connections are shown to be necessary to generalize aforementioned structures on pre-Leibniz algebroids. Consequently, we prove that, provided certain conditions, statistical and conjugate connection structures are equivalent when defined for admissible connections. Moreover, we also show that for `projected-torsion-free' connections, one can generalize Hessian metrics and Hessian structures. We prove that any Hessian structure yields a statistical structure, where these results are completely parallel to the ones in the manifold setting. We also prove a mild generalization of the fundamental theorem of statistical geometry. Moreover, we generalize $\alpha$-connections, strongly conjugate connections and relative torsion operator, and prove some analogous results.