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math.AP2014★ 17 cited
Gradient Estimates of Mean Curvature Equations with Neumann Boundary Condition
Xi-Nan Ma, Jinju Xu
In this paper, we use the maximum principle to get the gradient estimate for the solutions of the prescribed mean curvature equation with Neumann boundary value problem, which give…
math.AP2014
On space-time quasiconcave solutions of the heat equation
Chuanqiang Chen, Xi-Nan Ma, Paolo Salani
In this paper we first obtain a constant rank theorem for the second fundamental form of the space-time level sets of a space-time quasiconcave solution of the heat equation. Utili…