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Consider:

if $\log u$ and $\log v$ are both subharmonic function on an open set $U$, then $\log(u+v)$ is also subharmonic on $U$.

How can I prove this?

  • 0
    Are you assuming that $u,v \neq 0$ and $u,v$ twice differentiable?2011-03-04
  • 0
    yes i assume that2011-03-04

2 Answers 2