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Neumann Data and Second Variation Formula of Renormalized Area for Conformally Compact Static Spaces

2025/04/21 by Wang, Zhixin
#Differential Geometry (math.DG) #FOS: Mathematics

paper · doi:10.48550/arxiv.2504.15048

Abstract

In this paper, we derive the first and second variation formulas for the renormalized area for static Einstein spaces along a specific direction, demonstrating that the negativity of the Neumann data implies instability. Consequently, we obtain a rigidity result for the case when the conformal boundary is a warped product torus, which strengthens the result presented in \citeGSW.

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