Abstract
This is an expository article concerning unique continuation for second-order elliptic differential equations and inequalities, from the harmonic analysis point of view.
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Wolff, T.H. Recent work on sharp estimates in second-order elliptic unique continuation problems. J Geom Anal 3, 621–650 (1993). https://doi.org/10.1007/BF02921325
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DOI: https://doi.org/10.1007/BF02921325