Richard Rado
Richard Rado ( born April 28, 1906 in Berlin, † December 23, 1989 in Reading ) was a German mathematician who mainly dealt with combinatorics. He is not related to the Hungarian mathematician Tibor Radó.
Life
Rado, whose father came from Budapest, initially wavered between the study of mathematics and the career of a concert pianist. He studied in Berlin and Göttingen mathematics and in 1933 received his doctorate in Isay Schur (Studies on the combinatorics ). In the same year he emigrated to the seizure of power by the National Socialists in Germany to Britain. There he continued his studies in Cambridge ( Fitzwilliam House) continued with a scholarship, where he was influenced by GH Hardy, JE Littlewood, Bernhard Neumann, AS Besikowitsch and Philip Hall. In 1935, he was awarded his doctorate for a second time at Hardy ( linear transformation of bounded sequences). He also came into contact with Harold Davenport and Hans Heilbronn. A number of work on combinatorics and graph theory originated with Paul Erdős, whom he first met in 1934 in Cambridge, where Rado Lecturer was. Rado went in 1936 to the University of Sheffield, where he was a colleague and friend of Leonid Mirsky, and moved in 1947 to the King's College in London, before until his retirement in 1971 he became professor at the University of Reading from 1954.
With Erdős he founded the partition calculus in the Ramsey theory, see Theorem of Erdős - Rado. Already in his dissertation in 1933, he addressed issues from the environment of the Ramsey theory, starting from the set of Van der Waerden. Next he worked on graph theory (where the Rado graph or random graph is named after him ), the marriage theorem of Philip Hall and the theory of matroids. Erdős described their cooperation so that he himself was good in discovering interesting special cases, while Rado generalized to the greatest possible effectiveness.
The Richard Rado Prize for the best dissertation in Discrete Mathematics: In honor of the awarded every second year mathematician price of the Section is named Discrete Mathematics of the German Mathematical Society.
In 1972 he was awarded the Senior Berwick Prize and in 1978 he became a Fellow of the Royal Society. In 1981 he was made an honorary Doctor of FU Berlin. In 1974 he was invited speaker at the International Congress of Mathematicians in Vancouver ( Families of sets) and also in 1936 ( Some recent results in combinatorial analysis ), 1962 (A theorem on vector spaces ) and 1954 (A partition calculus ).
Since 1933, he was married to Luise Zadek, with whom he had a son. Both together were also publicly in musical events, with his wife, he sang and accompanied on the piano.
His doctoral include Eric Milner and Gabriel Andrew Dirac.
Writings
- Studies on Combinatorics, Berlin 1933 ( Inaugural Dissertation, with resume to 1933 )
- With Paul Erdős: A partition calculus in set theory. In: Bulletin of the American Mathematical Society. Vol 62, 1956, ISSN 0273-0979, pp. 427-489 (English)
- With Paul Erdős, András Hajnal, Attila Máté: Combinatorial set theory. Partition relations for cardinals ( = Studies in logic and the foundations of mathematics. Vol 106). North -Holland, Amsterdam, inter alia, 1984, ISBN 0-444-86157-2.