Abraham Plessner (February 13, 1900 – April 18, 1961) was a Russian mathematician. He was born on February 13, 1900, to a Jewish family in Łódź, which is now in Poland. He studied at secondary school where he was taught in Russian, German, and Polish. He studied at the University of Giessen where he studied under Ludwig Schlesinger and Friedrich Engel. He also studied at the University of Göttingen and Berlin. He completed his doctorate from the University of Giessen in 1922. Jointly with Kurt Hensel he edited Kronecker's collected works.
After completing his doctorate, Plessner worked in Marburg where he published a paper containing what is now called Plessner's theorem. It is a theorem concerning the boundary behaviour of functions meromorphic in the unit disk.
Plessner submitted his habilitation, the extra post-doctoral qualification needed to lecture at a German university, to the faculty at the University of Giessen. He was denied because he happened to be a Russian citizen. He then moved to Moscow and joined the research group of Nikolai Nikolaevich Luzin at Moscow State University. Though he left Germany before the Nazi's seized power in 1933, some scholars consider him an early Jewish emigrant from Nazi Germany; his career was negatively impacted by anti-semitism and he was not able to return to Germany, unlike early non-Jewish emigrants such as Eberhard Hopf and Wilhelm Maier. One scholar writes that in Plessner's case "the anti-Semitic prejudice was mixed with and partly hidden by concern for their lack of a German citizenship".[1][2]
In 1939, he became a professor at Moscow State University. He also held a position at the Mathematical Institute of the USSR Academy of Sciences. In 1949, he was dismissed from both posts during the Soviet campaign against "rootless cosmopolitans".
Plessner is widely viewed as a founder of the Moscow school of functional analysis. He faced financial and health problems in his later years. He died on April 18, 1961, in Moscow.
^Siegmund-Schultze, Reinhard (2009). Mathematicians Fleeing from Nazi Germany: Individual Fates and Global Impact. Princeton University Press. p. 8. ISBN 978-0-691-12593-0.
^Pinl, Max; Furtmüller, Lux (1973). "Mathematicians under Hitler". The Leo Baeck Institute Year Book. 18 (1). doi:10.1093/leobaeck/20.1.370.
AbrahamPlessner (February 13, 1900 – April 18, 1961) was a Russian mathematician. He was born on February 13, 1900, to a Jewish family in Łódź, which...
(Karl Otto Gustav Bernhard) Plessner (1892-1985), German philosopher and sociologist of Jewish descent AbrahamPlessner (1900-1961), Jewish Polish-Russian...
Vladimir Rokhlin entered Moscow State University in 1935. His advisor was AbrahamPlessner. He volunteered for the army in 1941, leading to four years as a prisoner...
Freudenthal, Eberhard Hopf, Heinz Hopf, Herman Müntz, Wilhelm Meyer, and AbrahamPlessner. Some emigrated to the United States, others to European countries;...
death in 1820. At his funeral, Rabbi Yaakov Lorberbaum, Rabbi Salomon Plessner and Rabbi Moses Kronik all delivered eulogies. He had three sons. His eldest...
Abraham Tiktin [he], under the title Zekher Tzaddik li-Brakhah (1821). Through his sermons and his close association with Rabbi Akiva Eger, Plessner became...
the Nazis. He died shortly afterwards. His doctoral students include AbrahamPlessner. Schlesinger was a historian of science. He wrote an article on the...
operators, inspired by the work of Marshall Stone, John von Neumann, AbrahamPlessner and Naum Ilyich Akhiezer . Following the evacuation of the Odessa State...
Moscow State University in 1932–1935; in 1938 got PhD degree (advisor – AbrahamPlessner). From 1943 to 1948 he was with the Steklov Institute of Mathematics;...
capability for objectivity, human self-reflection, theory of mind, Helmuth Plessner, 1928[citation needed] Homo faber "toolmaker man" "fabricator man" "worker...
as Rembrandts Bruder Sybill Morel as Saskia van Uylenburgh Clementine Plessner as Rembrandts Mutter Georg H. Schnell as Pit Gauwer Grange, p. 68. Grange...
writers. For modern times, see among others the conservative opinion of Plessner's religious catechism, "Dat Mosheh we-Yehudit", p. 258. Accordingly, the...
instincts and inhibit their animalistic impulses, an idea also expressed in Plessner's eccentricity. An appendix to Dąbrowski (1967) reports the results of investigations...
Pizzorno, Italian sociologist Michael Plekon, American sociologist Helmuth Plessner, German sociologist Geoffrey Pleyers, Belgian sociologist Joel M. Podolny...
ideology to stagnation Archived 5 April 2023 at the Wayback Machine, Yakir Plessner, p.72. Google Books. Retrieved on 8 September 2011. "The Seventh Dominion...
credibility of this information is doubted by Dzielska p. 174. Martin Plessner: Balinus, in: The Encyclopaedia of Islam, vol. 1, Leiden 1960, pp. 994-995;...
Global Information