Partial Differential Equations of Elliptic Type

Under the auspices of the Insituto Nazionale di Alta Matematica, a conference was held in October 1992 in Cortona, Italy, to study partial differential equations of elliptic type. Special emphasis was placed on the geometric aspects of the subject, giving this volume a unique flavor. Many of the world's leading figures in this subject area attended the meeting and this volume collects the best papers, covering the latest advances and shedding new light on old problems. As an account of the present state of the subject, these papers are unparalleled, and all workers on partial differential equations will find that this book will be of lasting value.