Uniform Approximation by Meromorphic Functions Having Prescribed Poles.
Uniformisation en dimension trois
Uniformization of Surfaces of Genus Two with Automorphisms.
Uniformizing functions for certain Shimura curves, in the case D=6
Uniformly perfect sets, Green's function, and fundamental domains.
Uniquely ergodic quadratic differentials.
Universal Teichmüller space and Fourier series.
Unstable Bundles and Branched Structures on Riemann Surfaces.
Untere Schranken für den ersten Eigenwert des Laplace-Operators auf kompakten Riemannschen Flächen.
Untersuchung über den Zusammenhang der Flächen im Sinne Riemann's
Untersuchungen über die algebraische Transformation der hypergeometrischen Functionen.