ArticleOriginal scientific text
Title
The boundary Harnack principle for the fractional Laplacian
Authors 1
Affiliations
- Institute of Mathematics, Technical University of Wrocław, 50-370 Wrocław, Poland
Abstract
We study nonnegative functions which are harmonic on a Lipschitz domain with respect to symmetric stable processes. We prove that if two such functions vanish continuously outside the domain near a part of its boundary, then their ratio is bounded near this part of the boundary.
Keywords
boundary Harnack principle, symmetric stable processes, harmonic functions, Lipschitz domains
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