Werner Schmeidler

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Göttingen city cemetery , grave of Werner Schmeidler

Johannes Werner Schmeidler (born June 7, 1890 in Berlin , † April 1, 1969 in Berlin) was a German mathematician . His research areas were algebra, fluid mechanics as well as integral equations and operators.

Life

Schmeidler studied mathematics in Göttingen from 1910 to 1914. From spring 1914 to autumn 1917 he was employed as a teacher, but from the outbreak of World War I until the end of 1916 he was a war participant. After being seriously wounded, he did his doctorate in 1917 with Edmund Landau in Göttingen ( on homogeneous commutative groups of hypercomplex quantities and their decomposition into indivisible factors ) and on October 1, 1917, he became an assistant at the mathematical seminar there. As an algebraic scientist, he was very close to Emmy Noether's conceptual approach and thus became one of her first students: Schmeidler's habilitation thesis was suggested and supervised by Noether ( on the breakdown of the group of the remaining classes of a finite module ), the habilitation took place in early 1919. As a result of this collaboration, Schmeidler became also co-author of E. Noether's first article in the field of algebra. In this article the modular theoretical terms: direct sum and average representation, remainder class modules and module isomorphism are developed and applied, as is the axiomatic method, so that this article is to be regarded as the real turning point in Noether's mathematical research, which then founded modern algebra.

On October 1, 1920, Schmeidler's reshabilitation for geometry at the University of Kiel took place. After a short time as a private lecturer there, Schmeidler was offered a professorship at the Technical University of Breslau in 1921 and was the first of the Noether students to hold a full professorship. In Breslau he continued his research on fields of algebraic functions. In 1928 he also became head of the Institute for Test Aircraft Construction, which was attached to his chair, so that from then on he mainly published on the fluid mechanics of hydrofoils. One of the doctoral students on this topic in 1933 was Helmut Heinrich . In the summer semester of 1934 Schmeidler took over the management of the now joint mathematical seminar of the university and the Technical University of Breslau.

In 1939, Schmeidler succeeded Rudolf Rothe as a full professor at the Technical University of Berlin on the chair for pure and applied mathematics and worked mainly on algebraic integral equations and operators in the Hilbert space . His lectures were on advanced and practical mathematics as well as on special topics such as algebra, differential geometry and flight flow theory. One of the doctoral students in 1942 was Erwin Fehlberg . In the winter semester of 1944/45, the last one with actual lessons, Schmeidler was one of the three last remaining ordinary. Professors (the others were Georg Hamel and Aloys Timpe ). Since Schmeidler had been a member of the NSDAP since 1937 , he was dismissed from the TH on January 1, 1946 and Ernst Mohr was appointed to its chair. In November 1947 G. Hamel and E. Mohr applied for Schmeidler's reappointment, with the assessment that Schmeidler was a nominal NSDAP member, but not an activist, the decisive factor for them was that there was no algebraic at the TU. According to the file note, A. Timpe only joined the application for serious factual reasons. Schmeidler was given back his chair for pure and applied mathematics on November 1, 1950 (since Mohr switched to the now vacant chair of the retired Timpe) and remained there until his retirement in 1958. Schmeidler ran the well-known "Guide to Mathematics" with Part VII away, which had been started by his predecessor R. Rothe and was published by Teubner-Verlag Leipzig and later by Teubner in Stuttgart.

In his private life, Schmeidler paid heavily for the two world wars: he was badly wounded in the First World War and returned as an invalid, in the Second he lost both sons. W. Schmeidler died on a visit to Berlin, his tomb is in Göttingen.

Work in the Berlin Mathematical Society

After the re-approval of the Berlin Mathematical Society (BMG) in 1950, Schmeidler was the secretary from the beginning until 1952 and was thus involved in its management. After Rembs and Timpe left the BMG in 1953 in protest against the membership of the National Socialist Ludwig Bieberbach , there was room for Schmeidler as chairman of the BMG from 1954 to 1958.

honors and awards

  • 1928: Dr.-Ing. E. h. at the Technical University in Wroclaw
  • 1958: Carl Friedrich Gauß Medal
  • 1959: Honorary Senator of the TU Berlin

Fonts

literature

Web links

Individual evidence

  1. ↑ Emmy Noether and Werner Schmeidler: Modules in non-commutative areas, especially from differential and difference expressions , Math. Zeitschr. 8 (1920), pp. 1-35.
  2. ↑ F. Volbehr et al. a .: Professors and lecturers at the Christian-August-Universität Kiel, 1956, p. 219, entry no.184
  3. ↑ Special inventory on the history of mathematics and natural sciences at the University of Göttingen from 1880 to 1933 Ed .: U. Hunger and H. Wellenreuther, University Archives Göttingen, edited by Martin Fimpel u. a., 2002, p. 102 (PDF; 4.2 MB)
  4. ^ Bulletin of the Technical University of Berlin-Charlottenburg , No. 9, January 1, 1951, Announcement No. 65.
  5. ^ Bulletin of the Technical University of Berlin-Charlottenburg , No. 32, November 1, 1958, Announcement No. 345.
  6. ↑ W. Schmeidler's tomb in Göttingen
  7. ↑ Bulletin of the Technical University of Berlin-Charlottenburg , No. 37, February 15, 1960, Communication No. 390.
personal data
SURNAME Schmeidler, Werner
ALTERNATIVE NAMES Schmeidler, Johannes Werner (full name)
BRIEF DESCRIPTION German mathematician and university professor
DATE OF BIRTH June 7, 1890
PLACE OF BIRTH Berlin
DATE OF DEATH April 1st 1969
Place of death Berlin