Stochastic proofs of the Beurling projection theorem and the Hall projection theorem for harmonic measure are given. Some$d$-dimensional versions (for all$d$>1) which follow from this
Rainer SchimmingFachrichtung Mathematik, Ernst-Moritz-Arndt-UniversitätHenrik SchlichtkrullDepartment of Mathematics and Physics, The Royal Veterinary and Agricultural University
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