These lecture notes provide a self-contained introduction to regularity theory for elliptic equations and systems in divergence form. After a short review of so

This volume deals with the regularity theory for elliptic systems. We may find the origin of such a theory in two of the problems posed by David Hilbert in his

A modern account of elliptic regularity theory, with a rigorous presentation of recent developments for fundamental models.

The primary objective of this monograph is to give a comprehensive exposition of results surrounding the work of the authors concerning boundary regularity of w

Nečas’ book Direct Methods in the Theory of Elliptic Equations, published 1967 in French, has become a standard reference for the mathematical theory of line