Regularity and uniqueness of the first eigenfunction for singular fully nonlinear operators

User’s guide to viscosity solutions of second order partial differential equations

Michael G. Crandall, Hitoshi Ishii, Pierre-Louis Lions · Bulletin of the American Mathematical Society · 1992 · 5K citations · Full text

Natural Sciences, Mathematics, Computational Fluid Dynamics +16

Regularity for a more general class of quasilinear elliptic equations

Peter Tolksdorf · Journal of Differential Equations · 1984 · 1.5K citations

Computing, Computational Engineering, Finite Element Methods +10

Boundary regularity for solutions of degenerate elliptic equations

Gary M. Lieberman · Nonlinear Analysis · 1988 · 1.3K citations

Natural Sciences, Mathematics, Differential Equations +11

On harnack type inequalities and their application to quasilinear elliptic equations

Neil S. Trudinger · Communications on Pure and Applied Mathematics · 1967 · 771 citations

Engineering, Agricultural Engineering, Aerodynamics +8

The principal eigenvalue and maximum principle for second‐order elliptic operators in general domains

Henri Berestycki, Louis Nirenberg, S. R. S. Varadhan · Communications on Pure and Applied Mathematics · 1994 · 688 citations

Natural Sciences, Secondary Education, Finite Element Analysis +10