The Second Variational Formula for Statistical Biharmonic Maps

Fuente: arXiv
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Main Author: Ueno, Ryu
Format: Preprint
Published: 2025
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author Ueno, Ryu
author_facet Ueno, Ryu
contents Recently, the statistical bi-energy functional and its first variational formula were introduced by the author and H. Furuhata. The Maps satisfying the corresponding Euler-Lagrange equation are called statistical biharmonic maps. We present the second variational formula for the statistical bi-energy functional and introduce the notion of stability. If the target statistical manifold is a Hessian manifold, it turns out that the second variational formula can be represented using the Hessian curvature. We provide examples of statistical biharmonic maps into Hessian manifolds that are significant in Hessian and information geometry. We also determine the stability of these statistical biharmonic maps, including the improper affine sphere.
format Preprint
id arxiv_https___arxiv_org_abs_2509_04807
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The Second Variational Formula for Statistical Biharmonic Maps
Ueno, Ryu
Differential Geometry
53B12, 53C43, 58E20, 53A15
Recently, the statistical bi-energy functional and its first variational formula were introduced by the author and H. Furuhata. The Maps satisfying the corresponding Euler-Lagrange equation are called statistical biharmonic maps. We present the second variational formula for the statistical bi-energy functional and introduce the notion of stability. If the target statistical manifold is a Hessian manifold, it turns out that the second variational formula can be represented using the Hessian curvature. We provide examples of statistical biharmonic maps into Hessian manifolds that are significant in Hessian and information geometry. We also determine the stability of these statistical biharmonic maps, including the improper affine sphere.
title The Second Variational Formula for Statistical Biharmonic Maps
topic Differential Geometry
53B12, 53C43, 58E20, 53A15
url https://arxiv.org/abs/2509.04807