Partial results on extending the Hopf Lemma

We proved in [1] a generalization of the Hopf Lemma in one dimension. In this paper we present two conjectures as possible extensions to higher dimensions, and give a very partial answer.

Bibliographic Details
Main Authors: Yan Yan Li, Louis Nirenberg
Format: Article
Language:English
Published: Sapienza Università Editrice 2009-01-01
Series:Rendiconti di Matematica e delle Sue Applicazioni
Subjects:
Online Access:https://www1.mat.uniroma1.it/ricerca/rendiconti/ARCHIVIO/2009(1)/97-115.pdf