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Open Access Publications from the University of California

An easy proof of Jensen’s theorem on the uniqueness of infinity harmonic functions

  • Author(s): Armstrong, Scott N.
  • Smart, Charles K.
  • et al.

We present a new, easy, and elementary proof of Jensen’s Theorem on the uniqueness of infinity harmonic functions. The idea is to pass to a finite difference equation by taking maximums and minimums over small balls.

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