Enne Heeren Dirksen
Enne Heeren Dirksen (also Enno Heeren Dirksen ); (Born January 3, 1788 in Eilsum , East Frisia ; † July 16, 1850 in Paris ) was a professor of mathematics at the Berlin University .
Life
From 1803 to 1807 Dirksen was privately instructed in mathematics , physics , astronomy and nautical science by the teacher of the Emden seafaring school, Cornelius Voorn (1744-1820) . Voorn probably had the hope that the talented Dirksen would take over his position later. Dirksen first became a school teacher in Hatzum and in 1815 in Hinte . The mathematician and astronomer Jabbo Oltmanns , who was working in Emden at the time , then recommended in 1816 that Dirksen be sent to Göttingen so that he could perfect his mathematical knowledge at the university there. Dirksen studied in Göttingen from 1817 to 1820 and during this time supported Carl Friedrich Gauß, among others, in calculating comet and planetoid orbits; Gauss always stayed in his favor and made several positive comments about Dirksen's work. Dirksen became a member of the Corps Frisia in Göttingen .
Dirksen received his doctorate on February 5, 1820 at the Philosophical Faculty of the University of Göttingen . The dissertation topic, a task for the faculty, was: Historiae progressuum instrumentorum mensurae angulorum accuratiori interserventium inde a Tob. Meyeri temporibus ad umbratione non de artificio multiplicationis (development of angle measuring instruments since Tobias Mayer). The speakers were Johann Tobias Mayer and Bernhard Friedrich Thibaut .
From March 6, 1820 Dirksen was a private lecturer at the Berlin University, and on August 26, 1820 he was appointed associate professor of mathematics there. He took up the full professorship on June 18, 1824 and then mainly occupied himself with analysis . The important mathematician Carl Gustav Jacob Jacobi was one of his students. Since 1825 he was a member of the Prussian Academy of Sciences .
When a serious facial disease set in in 1848, Dirksen went to Paris with his wife Pauline van Wingene (1809–1858) . He died there without any descendants and is buried in the Montmartre cemetery.
Works
His most important scientific publications are:
- Analytical representation of the calculation of variations, with its application to the determination of the largest and smallest (Berlin 1823),
- Organon of the entire transcendent analysis - first part (Berlin 1845, see picture)
- Extensive drafts for the sections that were to follow are in the estate.
literature
- Moritz Cantor : Dirksen, Enno . In: Allgemeine Deutsche Biographie (ADB). Volume 5, Duncker & Humblot, Leipzig 1877, p. 252 f.
- Menso Folkerts : Enne Heeren Dirksen . In: Biographical Lexicon for East Frisia . tape 1 . Ostfriesische Landschaftliche Verlags und Vertriebsgesellschaft mbH, Aurich 1993, ISBN 978-3-925365-75-1 , p. 108–110 ( online [PDF; 58 kB ]).
- Menso Folkerts: The mathematician EH Dirksen and CF Gauß. In: Messages. No. 20/21. Gauss Society V., Göttingen 1983/84, ISSN 0435-1452 , pp. 66-76.
- Heinrich Schumacher: Enne Heeren Dirksen from Eilsum (1788–1850) - a farm laborer's son becomes a university professor. In: Dieter Klemp (Hrsg.): On the history of surveying (= VDV series - The surveying engineer in practice. Volume 8). Chmielorz, Wiesbaden 1995, ISBN 978-3-87124-128-4 pp. 65-68.
Individual evidence
- ↑ Most of the older sources cite the probably incorrect year of birth 1792 given by Dirksen himself; see. Article (PDF) in the biographical lexicon Ostfriesland .
- ↑ Horst Bernhardi: Corpsliste der Frisia Göttingen in: Einst und Jetzt Volume 2 (1957), pp. 129–140, no. 99.
- ^ Members of the previous academies. Enno Heeren Dirksen. Berlin-Brandenburg Academy of Sciences , accessed on March 15, 2015 .
| personal data | |
|---|---|
| SURNAME | Dirksen, Enne Heeren |
| ALTERNATIVE NAMES | Dirksen, Enno Heeren |
| BRIEF DESCRIPTION | German mathematician, university professor of mathematics |
| DATE OF BIRTH | January 3, 1788 |
| PLACE OF BIRTH | Eilsum , East Frisia |
| DATE OF DEATH | July 16, 1850 |
| Place of death | Paris |