Geometric Interpretations and Applications of the Berger-Ebin and York $L^2$-Orthogonal Decompositions

Fuente: arXiv
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Main Authors: Stepanov, Sergey, Tsyganok, Irina
Format: Preprint
Published: 2025
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author Stepanov, Sergey
Tsyganok, Irina
author_facet Stepanov, Sergey
Tsyganok, Irina
contents The Berger-Ebin and York $L^2$-orthogonal decompositions of the vector space of symmetric bilinear differential two-forms are fundamental tools in global Riemannian geometry. In this paper, we investigate the structure of Ricci tensors on compact Riemannian manifolds, with a particular focus on compact Ricci almost solitons, utilizing both the Berger-Ebin and York $L^2$-orthogonal decompositions. In addition, we explore applications of the York $L^2$-orthogonal decomposition to the theory of submanifolds and to the study of harmonic maps between Riemannian manifolds.
format Preprint
id arxiv_https___arxiv_org_abs_2505_17566
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Geometric Interpretations and Applications of the Berger-Ebin and York $L^2$-Orthogonal Decompositions
Stepanov, Sergey
Tsyganok, Irina
Differential Geometry
53C20, 53C21, 53C24, 53A10
The Berger-Ebin and York $L^2$-orthogonal decompositions of the vector space of symmetric bilinear differential two-forms are fundamental tools in global Riemannian geometry. In this paper, we investigate the structure of Ricci tensors on compact Riemannian manifolds, with a particular focus on compact Ricci almost solitons, utilizing both the Berger-Ebin and York $L^2$-orthogonal decompositions. In addition, we explore applications of the York $L^2$-orthogonal decomposition to the theory of submanifolds and to the study of harmonic maps between Riemannian manifolds.
title Geometric Interpretations and Applications of the Berger-Ebin and York $L^2$-Orthogonal Decompositions
topic Differential Geometry
53C20, 53C21, 53C24, 53A10
url https://arxiv.org/abs/2505.17566