All functions are locally s-harmonic up to a small error

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Date
2014
Volume
1944
Issue
Journal
Series Titel
Book Title
Publisher
Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik
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Abstract

We show that we can approximate every function f Ck (B1) with a s-harmonic function in B1 that vanishes outside a compact set. That is, s-harmonic functions are dense in Ck loc. This result is clearly in contrast with the rigidity of harmonic functions in the classical case and can be viewed as a purely nonlocal feature.

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Keywords
Density properties, approximation, s-harmonic functions
Citation
Dipierro, S., Savin, O., & Valdinoci, E. (2014). All functions are locally s-harmonic up to a small error (Vol. 1944). Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik.
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