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Mixed Boundary Value Problems on Cylindrical Domains by Auscher, Pascal; Egert, Moritz is a scholarly article available to read on EtoBox.

What is Mixed Boundary Value Problems on Cylindrical Domains about?

We study second-order divergence-form systems on half-infinite cylindrical domains with a bounded and possibly rough base, subject to homogeneous mixed boundary conditions on the lateral boundary and square integrable Dirichlet, Neumann, or regularity data on the cylinder base. Assuming that the coefficients A are close to coefficients A\_0 that are independent of the unbounded direction with respect to the modified Carleson norm of Dahlberg, we prove a priori estimates and establish well-posedness if A\_0 has a special structure. We obtain a complete characterization of weak solutions whose gradient either has an L^2-bounded non-tangential maximal function or satisfies a Lusin area bound. Our method relies on the first-order formalism of Axelsson, McIntosh, and the first author and the recent solution of Kato's conjecture for mixed boundary conditions due to Haller-Dintelmann, Tolksdorf, and the second author.

Author

Auscher, Pascal; Egert, Moritz

Published

2015

Language

EN