Home > Adolf Abraham Halevi Fraenkel

Born in Munich, Germany on February 17 1891, Fraenkel studiet mathematics at the University of Munich, University of Berlin, University of Marburg and University of Breslau ; after graduating, he lectured at the University of Marburg from 1916 on, and was promoted to professor in 1922.

Fraenkel left Marburg six years later, in 1928; after a year of teaching at the University of KielThe University of Kiel in full the Christian-Albrechts-Universitat zu Kiel is a university in the city of Kiel, Germany. It was founded in 1665 in order to train priests and government officials. It was one of the first universities to obey the Gleichscha, he moved to Jerusalem in 1929Centuries: 19th century 20th century 21st century Decades: 1870s 1880s 1890s 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s Years: 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 See also 1929 in aviation 1929 in film 1929 in literature 1929 in mu, four years after the Hebrew University of JerusalemThe Hebrew University of Jerusalem is one of Israel's biggest and most important institutes of higher learning and research. One of the Zionist movement's dreams was to establish a Hebrew university in the land of Israel. The establishment of the universi's founding, where he spent the rest of his career. He became the first dean of the faculty of mathematics and also served as the rector of the university for a while.

Fraenkel's first work was on Hensel 's p-adic numberWith a lower-case and preferably italicized p. The p adic number systems were first described by Kurt Hensel in 1897. For each prime p the p adic number system extends the ordinary arithmetic of the rational numbers in a way different from the extension os and on the theoryIn mathematics, ring theory is the study of rings, algebraic structures in which addition and multiplication are defined and have similar properties to those familiar from the integers. Please refer to the glossary of ring theory for the definitions of te of ringsIn ring theory, a branch of abstract algebra, a ring is an algebraic structure in which addition and multiplication are defined and have similar properties to those familiar from the integers. History See Ring theory Definition and notation A ring is an a; he is, however, most well-known for his work on axiomatic set theory, publishing his first major work on the topic ("Einleitung in die Mengenlehre") in 1919. He made two attempts in 1922 and 1925 to put set theory into an axiomatic setting without paradoxes, improving Zermelo's axiomatic system and creating the Zermelo-Fraenkel axioms, and formally proved the independence of the axiom of choice from those.

Fraenkel also was interested in the history of mathematics; he wrote about Gauss' works in algebra in 1920 and 1930, and published a biography of Georg Cantor, and published the journal Jewish mathematics and astronomy in 1960; after retiring and being succeeded by his former student Robinson at the Hebrew University, Fraenkel continued teaching at the Bar Ilan University near Tel Aviv.

He died on October 15 1965 in Jerusalem, Israel.