General Regularity Results
We show in this chapter how to obtain general regularity results for solutions of PDEs or systems of PDEs. We shall stress the techniques for obtaining W l,p and C δ regularity. We shall then derive additional regularity. In the sequel everything is self-contained, except that we shall make use of the W 2,p regularity results for the linear Dirichlet problem. For equations we rely heavily on O.A. Ladyzhenskaya, N.N. Ural’tseva .
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