Ronald Björn Jensen (born April 1, 1936) is an American mathematician who lives in Germany, primarily known for his work in mathematical logic and set theory.
Ronald Jensen | |
---|---|
Born | April 1, 1936 |
Nationality | American |
Alma mater | University of Bonn |
Known for | Set theory, mathematical logic |
Scientific career | |
Fields | Mathematician |
Institutions | Humboldt University of Berlin |
Doctoral advisor | Gisbert Hasenjaeger |
Doctoral students | Adrian Mathias Benedikt Löwe |
Jensen completed a BA in economics at American University in 1959, and a Ph.D. in mathematics at the University of Bonn in 1964. His supervisor was Gisbert Hasenjaeger. Jensen taught at Rockefeller University, 1969–71, and the University of California, Berkeley, 1971–73. The balance of his academic career was spent in Europe at the University of Bonn, the University of Oslo, the University of Freiburg, the University of Oxford, and the Humboldt-Universität zu Berlin, from which he retired in 2001. He now resides in Berlin.
Jensen was honored by the Association for Symbolic Logic as the first Gödel Lecturer in 1990.[1] In 2015, the European Set Theory Society awarded him and John R. Steel the Hausdorff Medal for their paper "K without the measurable".
Jensen's better-known results include the:
Moreover, the Gödel Lecture, a new feature of the ASL Annual Meetings, was inaugurated this year. The first Gödel lecture was given by Ronald Jensen, who spoke on Inner Models and Large Cardinals.