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

作者：Armstrong Scott N^*; Smart Charles K

来源：Calculus of Variations and Partial Differential Equations, 2010, 37(3-4): 381-384.

DOI：10.1007/s00526-009-0267-9

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.

• 出版日期2010-3