Quasilinear uniformly elliptic differential equations of second order
Contributions:
The first
derivatives of the solution of the Dirichlet problem
are Hölder continuous up to a convex corner of two
dimensional domains.
Asymptotic expansion near a corner or a conical point.
Regularity results for the mean curvature equation.
Asymptotic expansion of a capillary surface near a corner for the case
that the first derivatives are Hölder continuous up
to the corner.