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math.AP2026
Ball and Spherical-Shell Rigidity from Overdetermined Translating Solitons
Liang Cheng, Li Ma
We study overdetermined boundary problems for the graphical translating-soliton equation \[ -\operatorname{div}\!\left(\frac{Du}{\sqrt{1+|Du|^2}}\right) =\frac{1}{\sqrt{1+|Du|^2}}…
math.AP2009
Blow-up and global solutions to L^p norm preserving non-local flows
Li Ma, Liang Cheng
In this paper, we study global existence and blow up properties to norm preserving non-local heat flows. We first study two kinds of norm preserving non-local flows and…