A weighted isoperimetric inequality and applications to symmetrization

Autor: Brock F, Mercaldo A, Posteraro MR, Betta MF
Jazyk: angličtina
Rok vydání: 1999
Předmět:
Zdroj: Journal of Inequalities and Applications, Vol 1999, Iss 3, p 670245 (1999)
Druh dokumentu: article
ISSN: 1025-5834
1029-242X
Popis: We prove an inequality of the form , where is a bounded domain in with smooth boundary, is a ball centered in the origin having the same measure as . From this we derive inequalities comparing a weighted Sobolev norm of a given function with the norm of its symmetric decreasing rearrangement. Furthermore, we use the inequality to obtain comparison results for elliptic boundary value problems.
Databáze: Directory of Open Access Journals