Question. Let's say that $F(x,y)$ is a function with $$\frac{\partial^2 F}{\partial x^2} + \frac{\partial^2 F}{\partial y^2} \ge 0$$ everywhere (such a function is called subharmonic). What effect does the gradient flow of $F(x,y)$ have on area?
2026-04-12 03:00:32.1775962832
Relationship between subharmonic functions and gradient flow
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