Does anyone know, how to find the Green function for the sum of fractional Laplacian and identity operator ($:= (-\Delta)^s + Id $) in unbounded domain (in $\mathbb{R}^N$) where $s \in (0,1)$?
2026-03-26 08:14:38.1774512878
Green function for $(-\Delta)^s + Id$ operator?
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