On curvature estimates for four-dimensional gradient Ricci solitons

Fuente: arXiv
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Main Author: Cao, Huai-Dong
Format: Preprint
Published: 2025
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author Cao, Huai-Dong
author_facet Cao, Huai-Dong
contents In this survey paper, we analyse and compare the recent curvature estimates for three types of $4$-dimensional gradient Ricci solitons, especially between Ricci shrinkers [58] and expanders [17]. In addition, we provide some new curvature estimates for $4$-dimensional gradient steady Ricci solitons, including the sharp curvature estimate $|Rm|\le C R$ for gradient steady Ricci solitons with positive Ricci curvature (see Theorem 1.1).
format Preprint
id arxiv_https___arxiv_org_abs_2510_06059
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On curvature estimates for four-dimensional gradient Ricci solitons
Cao, Huai-Dong
Differential Geometry
53C25
In this survey paper, we analyse and compare the recent curvature estimates for three types of $4$-dimensional gradient Ricci solitons, especially between Ricci shrinkers [58] and expanders [17]. In addition, we provide some new curvature estimates for $4$-dimensional gradient steady Ricci solitons, including the sharp curvature estimate $|Rm|\le C R$ for gradient steady Ricci solitons with positive Ricci curvature (see Theorem 1.1).
title On curvature estimates for four-dimensional gradient Ricci solitons
topic Differential Geometry
53C25
url https://arxiv.org/abs/2510.06059