Julius Worpitzky
Julius Daniel Theodor Worpitzky (born May 10, 1835 in Karlsburg near Greifswald , † March 4, 1895 in Berlin ) was a German mathematician . He mainly dealt with continued fractions , Bernoullian and Eulerian numbers , Euler numbers and the evaluation of certain integrals .
Life
Worpitzky obtained his school leaving certificate in 1855 at the grammar school in Anklam . He then studied five semesters at the University of Greifswald with Johann August Grunert and in the winter semester of 1857/58 in Berlin.
He then worked as a private teacher, including from 1860 to 1862 in Livonia . After his return to Prussia and passed the exam pro facultate docendi , he entered the mathematical-pedagogical seminar of Karl Heinrich Schellbach in Berlin in 1862/63, where he participated in Schellbach's theory of elliptical integrals and theta functions . According to the foreword, he demonstrated that the roots of a polynomial occurring during the investigation are real.
In 1864 he became a full teacher at the Friedrichs-Gymnasium Berlin , which at the time was united with the Friedrichs-Realgymnasium under the direction of Adolf Ferdinand Krech . Three years later he received his doctorate in Jena with a treatise on the finiteness of definite integrals and series sums . In the following year he succeeded Heinrich Bertram as the first mathematician at the Friedrichs-Werderschen Gymnasium .
In the autumn of 1872 he was also given a teaching position for mathematics at the Royal Prussian War Academy , and for some time he also worked for the ministry. In Berlin he was a member of the Freemason Lodge Friedrich Wilhelm for Crowned Justice .
From 1892 his health was impaired. He had requested and received his retirement on April 1, 1895. Julius Moser created his tomb in Cemetery I of the Jerusalem and New Church Congregation , an aedicule made of red granite with a relief made of white marble .
His scientific treatises belong mainly to function theory, where he was in competition with Charles Briot and Jean-Claude Bouquet .
Fonts
- Contribution to the integration of the Riccat equation , CA Koch's Verlag-Buchhandlung Th. Kunike, Greifswald 1862
- Investigations into the development of monodromic and monogenic functions through continued fractions , annual report Friedrichs-Gymnasium and Realschule, Gustav Lange, Berlin 1865
- About the finiteness of definite integrals and series sums , W. Ratz, Jena 1867 (inaugural dissertation)
- Elements of mathematics for learned schools and for self-study , Weidmannsche Buchhandlung, Berlin 1872 (booklet 1) 1874 (booklets 2 to 4) 1883 (booklet 5)
- Textbook on differential and integral calculation , Weidmannsche Buchhandlung, Berlin 1880 (in the Internet archive: [3] )
- Number, size, measure , in: Festschrift for the second secular celebration of the Friedrichs-Werderschen Gymnasium in Berlin , Weidmannsche Buchhandlung, Berlin 1881, pp. 335–348 (in the Internet archive: [4] )
- Studies on Bernoulli's and Euler's Numbers , Crelles Journal 94, 1883, pp. 203-232
literature
- Lisa Jacobsen, Wolfgang J. Thron, Haakon Waadeland: Julius Worpitzky, his contributions to the analytic theory of continued fractions and his times . In Lisa Jacobsen (ed.): Analytic Theory of Continued Fractions III , Springer, Berlin 1989, ISBN 3-540-51830-4 , pp. 25-47
- Emil Lampe : Obituary for Professor Dr. Julius Worpitzky , Annual Report of DMV 4, 1894/95, pp. 47–51
Individual evidence
- ^ Karl Heinrich Schellbach : The theory of the elliptical integrals and the theta functions , Georg Reimer, Berlin 1864
- ↑ see Cemetery I of the Jerusalem and New Church Congregation at the Foundation for Historic Cemeteries and Cemeteries in Berlin-Brandenburg; Photos: [1] , [2]
personal data | |
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SURNAME | Worpitzky, Julius |
ALTERNATIVE NAMES | Worpitzky, Julius Daniel Theodor (full name) |
BRIEF DESCRIPTION | German mathematician |
DATE OF BIRTH | May 10, 1835 |
PLACE OF BIRTH | Karlsburg (Western Pomerania) near Greifswald |
DATE OF DEATH | March 4, 1895 |
Place of death | Berlin |