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Area integral estimates for elliptic differential operators with non- smooth coefficients. (English) Zbl 0537.35025

The authors prove inequalities comparing the area integral and nontangential maximal functions for solutions to second order elliptic equations in a domain in \({\mathbb{R}}^ n\). Both, the coefficients of the equation and the domain satisfy very weak regularity conditions.
Reviewer: N.Jacob

MSC:

35J15 Second-order elliptic equations
35B45 A priori estimates in context of PDEs
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