Øystein Ore

Øystein Ore, Ore Öystein German, English or Oystein Ore Oysten, ( born October 7, 1899 in Kristiania ( now Oslo ), Norway, † August 13 1968 in Oslo) was a Norwegian mathematician who mainly abstract with the fields of algebra, graph theory and number theory employed.

Life and work

Ore was in Oslo (then Kristiania ) to school and thus began in 1918 when Thoralf Skolem and in Göttingen to study with Emmy Noether ( he was also some time at the Mittag-Leffler Institute in Djursholm in Sweden). In 1924 he received his doctorate in Oslo with the theory of algebraic Thoralf Skolem in body. In 1925 he revisited Göttingen and the Sorbonne in Paris, before assistant in Oslo in 1925. In 1927 he was invited to Yale University to go where he was an associate in 1928 and 1929, full professor in 1931 and Sterling Professor. At Yale he remained until his retirement in 1968, and from 1936 to 1945 he was chairman of the faculty there. Almost every year he visited in this period Oslo.

Ore initially worked in group theory and algebraic number theory, then the theory of noncommutative rings. In the U.S., he worked with Garrett Birkhoff on lattice theory ( Lattice Theory ) and then he turned to graph theory, about which he wrote several books.

He worked as part of his work for the first time with the so-called Schiefpolynomen. To generalize the localization on non-commutative rings, he discovered later named after him Ore conditions.

With Emmy Noether he edited the collected works of Richard Dedekind. He is also known for his biographies of Niels Henrik Abel, and Gerolamo Cardano. As a historian, he also dealt with the history of probability theory, in particular the role of Blaise Pascal. He also wrote books on the four color problem and the history of number theory.

For the support of his home during the Second World War ( he organized relief shipments ), he was appointed by the King of Norway knighted by St.Olaf 1947. He was a member of the American Academy of Arts and Sciences and the Academy of Sciences in Oslo. In 1936 he gave a plenary lecture at the International Congress of Mathematicians in Oslo (The decomposition theorem of algebra ).

He was married to Gudrun Lundevall since 1930 and had two children with her.

His doctoral include Marshall Hall, Bruce Lee Rothschild and Grace Hopper.

Works

• Abel mathematician extraordinary. Minnesota University Press 1957
• Cardano -the gambling scholar. Princeton University Press 1953
• Number theory and its history. 1948
• The theory of graphs. 1962
• Graphs and Their uses. 1963
• The four color problem-. 1967
• Invitation to Number Theory. 1969