| 词条 | Wolfgang Doeblin |
| 释义 |
| name = Wolfgang Doeblin | image = WolfgangDöblin 1938 MFO9417.jpg | image_size = | caption = ca.1938 | birth_date = {{birth date|1915|03|17|df=y}} | birth_place = Berlin | death_date = {{death date and age|1940|06|21|1915|03|17|df=y}} | death_place = Housseras | nationality = France | fields = Mathematics | workplaces = | alma_mater = Université de Paris | doctoral_advisor = Paul Lévy Maurice René Fréchet | thesis_title = Sur les propriétés asymptotiques de mouvements régis par certains types de chaînes simples | thesis_year = 1938 | doctoral_students = | known_for = Itô–Doeblin theorem | awards = }} Wolfgang Doeblin, known in France as Vincent Doblin (17 March 1915 – 21 June 1940), was a French-German mathematician. LifeA native of Berlin, Wolfgang was the son of the Jewish-German novelist and physician, Alfred Döblin, and Erna Reiss. His family escaped from Nazi Germany to France where he became a citizen. Studying probability theory at the Institute Henri Poincaré under Fréchet, he quickly made a name for himself as a gifted theorist. He became a doctor at age 23. Drafted in November 1938, after refusing to be exempted from military service, he had to stay in the active Army when World War II broke out in 1939, and was quartered at Givet, in the Ardennes, as a telephone operator. There, he wrote down his latest work on the Chapman–Kolmogorov equation, and sent this as a "pli cacheté" (sealed envelope) to the French Academy of Sciences. His company, sent to the sector of the Saare on the ligne Maginot in April 1940, was caught in the German attack in the Ardennes in May, withdrew to the Vosges, and capitulated on 22 June 1940. On 21 June Doeblin shot himself in Housseras (a small village near Epinal), when German troops came in sight of the place. In his last moments, he burned his mathematical notes. The sealed envelope was opened in 2000,[1] revealing that Doeblin was ahead of his time in the development of the theory of Markov processes. In recognition of his results, Itô's lemma is now occasionally referred to as the Itô–Doeblin theorem.[2] His life was the subject of a 2007 movie by Agnes Handwerk and Harrie Willems, A Mathematician Rediscovered.[3] When he became a French citizen in 1938, he chose the official name of Vincent Doblin. However, he later chose to spell it as Wolfgang Doeblin and it is under this name that all his mathematical papers and professional letters were signed. [4]Notes1. ^Wolfgang Doeblin: "Sur l'équation de Kolmogoroff, Pli cacheté à l'Académie des Sciences, édité par B. Bru et M. Yor", CRAS, Paris, 331 (2000). 2. ^Shreve, S. E. (2004). Stochastic calculus for finance I: The binomial asset pricing model (Vol. 1). Springer. 3. ^[https://www.springer.com/math/book/978-3-540-71960-1 Wolfgang Doeblin — Histoire des mathématiques Journals, Books & Online Media | Springer] 4. ^Mazliak, L.: On the exchanges between W. Doeblin and B. Hostinský Rev. Hist. Math. 13, no. 1 (2007) References
| last = Bru | first = Bernard | last2 = Yor | first2 = Marc | author2-link = Marc Yor | title = Comments on the life and mathematical legacy of Wolfgang Doeblin | journal = Finance and Stochastics | volume = 6 | issue = 1 | pages = 3–47 | publisher = Springer-Verlag | location = Berlin / Heidelberg | date = January 2002 | doi = 10.1007/s780-002-8399-0 | mr = 1885582}}
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17 : 1915 births|1940 deaths|20th-century mathematicians|Alfred Döblin|French Jews|French mathematicians|French military personnel who committed suicide|German emigrants to France|German Jews|German mathematicians|Jewish emigrants from Nazi Germany|Members of the French Academy of Sciences|Mathematicians who committed suicide|Writers from Berlin|People of the German Empire|People of the Weimar Republic|Probability theorists |
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