Karl Heym (mathematician)

Karl Friedrich Heym (born August 18, 1818 in Leipzig ; † May 25, 1889 there ) was a German mathematician . He is considered a pioneer in actuarial mathematics in Germany.

Life

Karl Heym was born in 1818 as the son of a gold worker. Until 1829 he attended the humanistic Thomas School in Leipzig . Then he completed an apprenticeship as a gold worker like his father. With the help of a scholarship, he studied mathematics at the University of Leipzig from 1838 to 1843 . Among his teachers were Moritz Wilhelm Drobisch , Gustav Theodor Fechner and August Ferdinand Möbius .

From 1840 to 1847 he worked as an amanuensis with Möbius at the Leipzig observatory . In 1841 he was involved in researching the earth's magnetic field . Presumably in 1843 he assisted his boss in creating the work The Elements of the Mechanics of Heaven . In 1847 he received his doctorate from the University of Leipzig. He then taught at polytechnic schools and from 1847 to 1881 as a teacher of mathematics and physics (including astronomical subjects) at the Thomas School. He was thus the pedagogue of the astronomers Rudolf Engelmann and Karl Wilhelm Valentiner . In 1873 he was supported by the later Nobel Prize winner Karl Ferdinand Braun . Heym was also known to the astronomer Karl Friedrich Zöllner .

He was employed by the Saxon government as an expert for death benefit funds . He developed the so-called Heym's Saxon Table , a life table from the birth and death registers of the Kingdom of Saxony . He also dealt with illness and disability statistics (work on the probability of disability). According to Heym, the duration of illness depended on age. Based on this, he calculated health insurance tariffs. In 1855 he founded the Leipziger Krankenkasse . In 1880 he was an expert to determine the amount of contributions to social accident insurance . His report was discussed in the Reichstag in 1881 .

Fonts

The preparation of the accounts of sickness and funeral funds , 1856.
Health and Disability Insurance , 1863.
The history of mathematics and science teaching in secondary schools , 1873 ( Digitalisat the SLUB Dresden / eBooks on Demand )
The number and duration of diseases in a mixed population , 1878.

literature

Peter Koch: Heym, Karl. In: New German Biography (NDB). Volume 9, Duncker & Humblot, Berlin 1972, ISBN 3-428-00190-7 , p. 87 ( digitized version ).
Wolfgang R. Dick, Jürgen Hamel (ed.): Contributions to the history of astronomy. Volume 8, Verlag Harri Deutsch, Frankfurt 2006, ISBN 3-8171-1771-X , p. 181 ff.

Individual evidence

^ Christian Warns: Rules of the game of solidarity. Health insurance competition. Competition, solidarity and sustainability after the 2007 health reform. Herbert Utz Verlag, Munich 2009, ISBN 978-3-8316-0864-5 , p. 159.
↑ See collection of sources on the history of German social policy 1867 to 1914 , Section I: From the time when the Reich was founded to the imperial social message (1867-1881) , Volume 2: From liability legislation to the first accident insurance proposal , edited by Florian Tennstedt and Heidi Winter, Stuttgart u. a. 1993, pp. 167, 266, 281, 295, 304, 305, 322, 330, 352, 353, 410, 503.

personal data
SURNAME	Heym, Karl
ALTERNATIVE NAMES	Heym, Karl Friedrich (full name)
BRIEF DESCRIPTION	German mathematician
DATE OF BIRTH	August 18, 1818
PLACE OF BIRTH	Leipzig
DATE OF DEATH	May 25, 1889
Place of death	Leipzig

[1] Christian Warns: Rules of the game of solidarity. Health insurance competition. Competition, solidarity and sustainability after the 2007 health reform. Herbert Utz Verlag, Munich 2009, ISBN 978-3-8316-0864-5 , p. 159.

[2] See collection of sources on the history of German social policy 1867 to 1914 , Section I: From the time when the Reich was founded to the imperial social message (1867-1881) , Volume 2: From liability legislation to the first accident insurance proposal , edited by Florian Tennstedt and Heidi Winter, Stuttgart u. a. 1993, pp. 167, 266, 281, 295, 304, 305, 322, 330, 352, 353, 410, 503.