Otto Schreier

From 1920 Otto Schreier studied at the University of Vienna and took classes with Wilhelm Wirtinger, Philipp Furtwängler, Hans Hahn, Kurt Reidemeister, Leopold Vietoris, and Josef Lense.

In 1923 he obtained his doctorate, under the supervision of Philipp Furtwängler, entitled On the expansion of groups (Über die Erweiterung von Gruppen).

He gave lectures in Hamburg and Rostock at the same time in the winter semester but fell seriously ill from sepsis in December 1928, of which he died six months later.

With Emanuel Sperner, he wrote an introductory textbook on linear algebra, which was well-known in German-speaking countries for a long time.

Really, Artin and his congenial friend and colleague Schreier set out on the daring and successful construction of a bridge between algebra and analysis.

Otto Schreier
Start pages of a 1928 article of Schreier on the Jordan–Hölder theorem