On the Lipschitz continuity of certain quasiregular mappings between smooth Jordan domains

Analytic extensions of differentiable functions defined in closed sets

Hassler Whitney · Transactions of the American Mathematical Society · 1934 · 859 citations

Natural Sciences, Mathematics, Differential Equations +5

On nonlinear elliptic partial differential equations and hölder continuity

Louis Nirenberg · Communications on Pure and Applied Mathematics · 1953 · 197 citations

Natural Sciences, Mathematics, Differential Equations +11

On one-to-one harmonic mappings

Erhard Heinz · Pacific Journal of Mathematics · 1959 · 177 citations · Full text

Natural Sciences, Mathematics, Physics +8

On the higher derivatives at the boundary in conformal mapping

S. E. Warschawski · Transactions of the American Mathematical Society · 1935 · 175 citations · Full text

Natural Sciences, Earth Sciences, Boundary Layer Meteorology +7

On harmonic quasiconformal mappings

Annales Academiae Scientiarum Fennicae Series A I Mathematica · 1969 · 142 citations · Full text

Natural Sciences, Mathematics, Differential Equations +7