A Hopf Type Principle and a Strong Maximum Principle for the p-Sub-Laplacian on the Group of Heisenberg Type
Pengcheng Niu · Journal of Mathematical Research and Exposition · 2007
In this paper we extend Capogna,Danielii and Garofalo's result about radial solution of p- sub-Laplacian.Then by improving the method for Hopf principle concerning Laplacian on the Euclidean space,we set up a Hopf type principle for the p-sub-Laplacian,and prove a strong maximum principle.