1.

Record Nr.

UNINA9910254073203321

Autore

Beck Lisa

Titolo

Elliptic regularity theory : a first course / / by Lisa Beck

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2016

ISBN

3-319-27485-6

Edizione

[1st ed. 2016.]

Descrizione fisica

1 online resource (214 p.)

Collana

Lecture Notes of the Unione Matematica Italiana, , 1862-9113 ; ; 19

Disciplina

515.353

Soggetti

Differential equations, Partial

Calculus of variations

Partial Differential Equations

Calculus of Variations and Optimal Control; Optimization

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Preliminaries -- Introduction to the Setting -- The Scalar Case -- Foundations for the Vectorial Case -- Partial Regularity Results for Quasilinear Systems.

Sommario/riassunto

These lecture notes provide a self-contained introduction to regularity theory for elliptic equations and systems in divergence form. After a short review of some classical results on everywhere regularity for scalar-valued weak solutions, the presentation focuses on vector-valued weak solutions to a system of several coupled equations. In the vectorial case, weak solutions may have discontinuities and so are expected, in general, to be regular only outside of a set of measure zero. Several methods are presented concerning the proof of such partial regularity results, and optimal regularity is discussed. Finally, a short overview is given on the current state of the art concerning the size of the singular set on which discontinuities may occur. The notes are intended for graduate and postgraduate students with a solid background in functional analysis and some familiarity with partial differential equations; they will also be of interest to researchers working on related topics.