TY - JOUR

T1 - Asymptotic behavior of solutions to the Yamabe equation with an asymptotically flat metric

AU - Han, Zheng Chao

AU - Xiong, Jingang

AU - Zhang, Lei

N1 - Funding Information:
J. Xiong was partially supported by the National Key R&D Program of China No. 2020YFA0712900 and NSFC 11922104 and 12271028.L. Zhang was partially supported by a collaboration grant of Simons Foundation (Award Number: 584918).
Publisher Copyright:
© 2023 Elsevier Inc.

PY - 2023/8/15

Y1 - 2023/8/15

N2 - 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.

AB - 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.

KW - Asymptotic behavior

KW - Asymptotically flat metric

KW - Isolated singularity

KW - Yamabe equation

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U2 - 10.1016/j.jfa.2023.109982

DO - 10.1016/j.jfa.2023.109982

M3 - Article

AN - SCOPUS:85156196263

SN - 0022-1236

VL - 285

JO - Journal of Functional Analysis

JF - Journal of Functional Analysis

IS - 4

M1 - 109982

ER -