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arxiv: 0907.0793 · v1 · pith:KKJXPYH7new · submitted 2009-07-04 · 🧮 math.PR

Boundary Harnack Inequality for alpha-harmonic functions on the Sierpi\'nski triangle

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keywords alphaboundaryfunctionsharnackinequalitysierpitrianglealpha-harmonic
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We prove an uniform boundary Harnack inequality for nonnegative functions harmonic with respect to $\alpha$-stable process on the Sierpi{\'n}ski triangle, where $\alpha \in (0, 1)$. Our result requires no regularity assumptions on the domain of harmonicity.

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