Ludwig Bieberbach

[1] Born in Goddelau, near Darmstadt, he studied at Heidelberg and under Felix Klein at Göttingen, receiving his doctorate in 1910.

In 1928 Bieberbach wrote a book with Issai Schur titled Über die Minkowskische Reduktiontheorie der positiven quadratischen Formen.

He was enthusiastically involved in the efforts to dismiss his Jewish colleagues, including Edmund Landau and his former coauthor Issai Schur, from their posts.

The purpose of the movement was to encourage and promote a "German" (in this case meaning intuitionistic) style in mathematics.

For example, Bieberbach claimed that "the Cauchy–Goursat theorem arouses intolerable displeasure" in Germans, and was representative of an abstract style of reasoning and "pronounced shrewdness" characteristic of "Jewish mathematics".