In the very influential paper [4] Caffarelli and Silvestre studied regularity of (−Δ)s, 0
CITATION STYLE
Arendt, W., Ter Elst, A. F. M., & Warma, M. (2018). Fractional powers of sectorial operators via the Dirichlet-to-Neumann operator. Communications in Partial Differential Equations, 43(1), 1–24. https://doi.org/10.1080/03605302.2017.1363229
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