Gesammelte Abhandlungen - Collected Papers

During his short life Oswald Teichmüller wrote 34 papers, all reproduced in this volume.

From the Preface: "Teichmüller's most influential paper was called "Extremale quasikonforme Abbildungen und quadratische Differentiale" (No. 20 in this collection). At the time of its appearance several special cases of extremal problems for quasiconformal mappings had already been solved, and Teichmüller was able to draw on a substantial fund of experience. Nevertheless, it was a remarkable fea ...