There are only five letters and two postcards which were written by Emmy Noether to P.S. Alexandroff that have been preserved. These will be edited in this paper. More than any other source, these letters and postcards give an insight into Emmy Noether's privacy, and her sympathy for the problems of her pen pal and colleagues. They illuminate her judgement of different colleagues, students, «mathematical grandchildren» and their papers. They also inform about relationships within the mathematicians' community and the working (...) atmosphere in Goettingen and the US after 1933. The author thanks Prof. Dr. Walter Purkert, Bonn, for the reference to the writings of Emmy Noether, and Prof. Dr. Albert Shiryaev, Moscow, for the kind publication permission. (shrink)

This paper is devoted to the 150th birthday of the mathematician Felix Klein. On this occasion, we present papers of Klein's Habilitation and give a commentary on them. They have not been analyzed until now. Especially, we have a look at some aspects which concern Klein's broader view on sciences.

The paper considers the status of mathematics and mathematicians in German industrial labs from the 1920s. As an example, we take the use of statistical methods in the electrical engineering company Osram in Berlin. In the United States, the former employee and member of a special mathematical research department of the Bell Telephone Laboratories, Walter Andrew Shewhart (1891–1967), is regarded as the father of statistical quality control. Although the first textbook on applications of mathematical statistics to problems of mass production (...) was published in Germany in 1927, Germany was nevertheless generally considered as conservative in using statistical methods until 1945. In the past we have known little about whether and how these methods were actually applied in German industry before 1945. The present analysis is based on laboratory reports and other sources. It shows that in this field of research there was a close cooperation between industry and university, which was cut off in the mid 1930s due to the Nazi regime. Furthermore, we discovered that female researchers – such as Iris Runge (1888–1966) in the Osram company – could as individuals play a decisive role as mathematical consultants. The position of Runge will be described and compared with the position of mathematical researchers in other industrial labs. am Beispiel früher Anwendung von mathematischer Statistik in der Osram G.m.b.H.Hans Wußing zum 80. Geburtstag gewidmet. (shrink)