A constant rank theorem for spacetime convex solutions of heat equation

作者:Hu Bowen; Ma Xinan*
来源:Manuscripta Mathematica, 2012, 138(1-2): 89-118.
DOI:10.1007/s00229-011-0485-2

摘要

We prove a constant rank theorem for the spacetime Hessian of the spacetime convex solutions of standard heat equation. Moreover, we apply this technique to get a constant rank theorem for the spacetime hessian of a spacetime convex solution of a nonlinear heat equation.

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