A proof of Alexandrov's uniqueness theorem for convex surfaces in R-3

作者:Guan, Pengfei*; Wang, Zhizhang; Zhang, Xiangwen
来源:ANNALES DE L INSTITUT HENRI POINCARE-ANALYSE NON LINEAIRE, 2016, 33(2): 329-336.
DOI:10.1016/j.anihpc.2014.09.011

摘要

We give a new proof of a classical uniqueness theorem of Alexandrov [4] using the weak uniqueness continuation theorem of Bers-Nirenberg [8]. We prove a version of this theorem with the minimal regularity assumption: the spherical Hessians of the corresponding convex bodies as Radon measures are nonsingular.