Asymptotic behavior of solutions to the Yamabe equation with an asymptotically flat metric

Zheng Chao Han, Jingang Xiong, Lei Zhang

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We prove that any positive solution of the Yamabe equation on an asymptotically flat n-dimensional manifold of flatness order at least [Formula presented] and n≤24 must converge at infinity either to a fundamental solution of the Laplace operator on the Euclidean space or to a radial Fowler solution defined on the entire Euclidean space. The flatness order [Formula presented] is the minimal flatness order required to define ADM mass in general relativity; the dimension 24 is the dividing dimension of the validity of compactness of solutions to the Yamabe problem. We also prove such alternatives for bounded solutions when n>24. We prove these results by establishing appropriate asymptotic behavior near an isolated singularity of solutions to the Yamabe equation when the metric has a flatness order of at least [Formula presented] at the singularity and n≤24, also when n>24 and the solution grows no faster than the fundamental solution of the flat metric Laplacian at the singularity. These results extend earlier results of L. Caffarelli, B. Gidas and J. Spruck, also of N. Korevaar, R. Mazzeo, F. Pacard and R. Schoen, when the metric is conformally flat, and work of C.C. Chen and C.S. Lin when the scalar curvature is a non-constant function with appropriate flatness at the singular point, also work of F. Marques when the metric is not necessarily conformally flat but smooth, and the dimension of the manifold is three, four, or five, as well as recent similar results by the second and third authors in dimension six.

Original languageEnglish (US)
Article number109982
JournalJournal of Functional Analysis
Volume285
Issue number4
DOIs
StatePublished - Aug 15 2023
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Analysis

Keywords

  • Asymptotic behavior
  • Asymptotically flat metric
  • Isolated singularity
  • Yamabe equation

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