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math.DG2023
Two rigidity results for surfaces in Schwarzschild spacetimes
Po-Ning Chen, Ye-Kai Wang
We prove two rigidity results for surfaces lying in the standard null hypersurfaces of Schwarzschild spacetime satisfying certain mean curvature type equations. The first is for th…
math.DG2021★ 1 cited
A note on the convex body isoperimetric conjecture in the plane
Bo-Hshiung Wang, Ye-Kai Wang
The convex body isoperimetric conjecture in the plane asserts that the least perimeter to enclose given area inside a unit disk is greater than inside any other convex set of area…
math.DG2016
Quasi-local energy with respect to a static spacetime
Po-Ning Chen, Mu-Tao Wang, Ye-Kai Wang +1
This article considers the quasi-local energy in reference to a general static spacetime. We follow the approach developed by the authors in [19, 20, 7, 9] and define the quasi-loc…