ⓘ Paul Riebesell
Paul Louis Riebesell was a German mathematician, statistician, actuary, and president of Hamburger Feuerkasse. At the International Congress of Mathematicians, he was an invited speaker in 1932 in Zurich and in 1936 in Oslo.
Riebesell studied mathematics and natural sciences in Munich, in Berlin, and at the University of Kiel, where he received his doctorate in 1905 under the supervision of Paul Stackel. After receiving his doctorate Riebesell was a Studienrat for a number of years in Hamburg. In 1918 he became the second director of the Hamburg Jugendamt. He wrote a commentary on the Reichsgesetz fur Jugendwohlfahrt Youth Welfare Law. He published research on Einsteins theory of relativity. After he habilitated at the University of Hamburg, there at the beginning of the 1920s he was appointed an auSerordentlicher Professor non-tenured professor in actuarial mathematics and remained in that position until 1934. In 1923 the city of Hamburg appointed him director of Hamburger Feuerkasse. In 1934 he was elected president of the Reichsverband des offentlich-rechtlichen Versicherung Reich Association of Public Insurance Companies. in 1937 he lost this position for political reasons. In 1938 he became the director of the life insurance company Isar Lebensversicherungs-AG with headquarters in Munich. He was also a professor honorarius from 1935 to 1940 at the Technische Hochschule Berlin TH Berlin, from 1935 at the Humboldt University of Berlin, and from 1938 at the Ludwig Maximilian University of Munich. After WW II he returned to Hamburg as president of Hamburger Feuerkasse and held that position until his death in 1950. In 1948 he co-founded the Deutsche Gesellschaft fur Versicherungsmathematik German Society for Actuarial Mathematics and became its first chairman.
Riebesell dealt with the influence of currency devaluation on insurance benefits. His achievement in actuarial science lies primarily in the transfer of actuarial approaches from life insurance to property insurance. He published, with Rudolf Lencer, the textbook and reference book "Deutsche Versicherungswirtschaft" 6 vols., 1936–39.
During WWI, a thousand copies of Riebesells booklet Mathematik im Krieg Mathematics in war were sent, free of charge, to the front.
Riebesell was a member of the NSDAP. He signed the Bekenntnis der Professoren an den Universitaten und Hochschulen zu Adolf Hitler und dem nationalsozialistischen Staat, which was published in November 1933.
In 1922 he married Elisabeth Lengstorf 1897–1976. They had two sons and four daughters.
2. Selected publications
- Mathematische Statistik und Biometrik 1932 & 1944
- Die Relativitatstheorie im Unterricht 1926
- Die Beweise fur Relativitatstheorie, Naturwissenschaften 4 1916, pp. 97–101. doi:10.1007/BF01509402
- as co-editor: Handbuch der Versicherung Hamburg 1938
- Mathematik im Krieg 1916
- Uber die geometrischen Deutungen der Relativitatstheorie, Mitteilungen der mathematischen Gesellschaft 5 1914, pp. 130–140.
- Die mathematischen Grundlagen der Variations- und Vererbungslehre 1916
- Einfuhrung in die Sachversicherungsmathematik 1936
- Mathematik des taglichen Lebens
- "Die neueren Ergebnisse der theoretischen Physik und ihre Beziehungen zur Mathematik". Die Naturwissenschaften. 6 6: 61–65. 1918. doi:10.1007/BF01506400. ISSN 0028-1042.
- Photogrammetrie in der Schule 1914
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