, Volume 5, Issue 2, pp 353-395
Date: 24 Jun 2009

Some remarks on singular solutions of nonlinear elliptic equations. I

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Abstract.

We study strong maximum principles for singular solutions of nonlinear elliptic and degenerate elliptic equations of second order. An application is given on symmetry of positive solutions in a punctured ball using the method of moving planes.

Dedicated to Felix Browder on his 80th birthday