Mathematics – Analysis of PDEs
Scientific paper
2010-01-03
Mathematics
Analysis of PDEs
37 pages
Scientific paper
10.1515/ACV.2011.015
$L^{\infty}$ estimates in the integrability by compensation result of H. Wente fail in dimension larger than two when Sobolev spaces are replaced by the ad-hoc Morrey spaces. However, in this paper we prove that $L^{\infty}$ estimates hold in arbitrary dimension when Morrey spaces are replaced by their Littlewood Paley counterparts: Besov-Morrey spaces. As an application we prove the existence of conservation laws to solution of elliptic systems of the form $-\Delta u= \Omega \cdot \nabla u$ where $\Omega$ is antisymmetric and both $\nabla u$ and $\Omega$ belong to these Besov-Morrey spaces for which the system is critical.
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