Schur's lemma and best constants in weighted norm inequalities
Strong forms of Schur's Lemma and its converse are proved for maps taking non-negative functions to non-negative functions and having formal adjoints. These results are applied to give best constants in a large class of weighted Lebesgue norm inequalities for non-negative integral operators. Si...
Main Author: | |
---|---|
Format: | Article |
Language: | English |
Published: |
Università degli Studi di Catania
2002-11-01
|
Series: | Le Matematiche |
Subjects: | |
Online Access: | http://www.dmi.unict.it/ojs/index.php/lematematiche/article/view/207 |