Format:
Online-Ressource (XIII, 369 p, online resource)
ISBN:
9788876424434
Series Statement:
Publications of the Scuola Normale Superiore
Content:
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 celebrated lecture delivered during the International Congress of Mathematicians in 1900 in Paris: 19th problem: Are the solutions to regular problems in the Calculus of Variations always necessarily analytic? 20th problem: does any variational problem have a solution, provided that certain assumptions regarding the given boundary conditions are satisfied, and provided that the notion of a solution is suitably extended? During the last century these two problems have generated a great deal of work, usually referred to as regularity theory, which makes this topic quite relevant in many fields and still very active for research. However, the purpose of this volume, addressed mainly to students, is much more limited. We aim to illustrate only some of the basic ideas and techniques introduced in this context, confining ourselves to important but simple situations and refraining from completeness. In fact some relevant topics are omitted. Topics include: harmonic functions, direct methods, Hilbert space methods and Sobolev spaces, energy estimates, Schauder and Lp-theory both with and without potential theory, including the Calderon-Zygmund theorem, Harnack's and De Giorgi-Moser-Nash theorems in the scalar case and partial regularity theorems in the vector valued case; energy minimizing harmonic maps and minimal graphs in codimension 1 and greater than 1. In this second deeply revised edition we also included the regularity of 2-dimensional weakly harmonic maps, the partial regularity of stationary harmonic maps, and their connections with the case p=1 of the Lp theory, including the celebrated results of Wente and of Coifman-Lions-Meyer-Semmes
Additional Edition:
ISBN 9788876424427
Additional Edition:
Erscheint auch als Druck-Ausgabe Giaquinta, Mariano, 1947 - An introduction to the regularity theory for elliptic systems, harmonic maps and minimal graphs Pisa : Ed. della Normale [u.a.], 2012 ISBN 9788876424427
Language:
English
Subjects:
Mathematics
Keywords:
Elliptische Differentialgleichung
;
Variationsrechnung
DOI:
10.1007/978-88-7642-443-4
URL:
Volltext
(lizenzpflichtig)
Author information:
Giaquinta, Mariano 1947-
