Strong unique continuation for products of elliptic operators of second order

Colombini, Ferruccio; Koch, Herbert

doi:10.1090/S0002-9947-09-04799-0

Strong unique continuation for products of elliptic operators of second order
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by Ferruccio Colombini and Herbert Koch PDF

Trans. Amer. Math. Soc. 362 (2010), 345-355 Request permission

Abstract:

We study strong unique continuation for products of elliptic operators. The main tools are Carleman inequalities for second order elliptic operators. We obtain strong unique continuation assuming either Gevrey regularity of the coefficients or some pointwise conditions on the coefficients.

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