The regularity of solutions for nonlinear degenerate elliptic boundary value problem
This paper is devoted to the study of the regularity for solutions of the Dirichlet problem of a nonlinear degenerate elliptic equation in an open bounded set \(\Omega\) (with smooth boundary) in \({\mathbb{R}}^ 2\). A sufficient condition to get the \(C^{\infty}({\bar \Omega})\)-regularity of the solutions in \(c^{3+\alpha}({\bar \Omega})\) \((\alpha >0)\) is given.
scientific article; zbMATH DE number 4192227