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Quantitative uniqueness for elliptic equations with singular lower order terms (1002.0994v2)
Published 4 Feb 2010 in math.AP
Abstract: We use a Carleman type inequality of Koch and Tataru to obtain quantitative estimates of unique continuation for solutions of second order elliptic equations with singular lower order terms. First we prove a three sphere inequality and then describe two methods of propagation of smallness from sets of positive measure.
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