Sy Friedman

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Sy-David Friedman
Professor Sy Friedman before a lecture during The First European Set Theory Meeting, Będlewo (Poland), July 2007
Professor Sy Friedman before a lecture during The First European Set Theory Meeting, Będlewo (Poland), July 2007
Born May 6, 1953 (1953-05-06) (age 55)
Chicago
Residence Vienna, Austria
Nationality Flag of the United States United States, Flag of Austria Austria
Fields Mathematician
Institutions University of Vienna
Alma mater MIT
Doctoral advisor Gerald E. Sacks
Known for Mathematical logic, Set theory, Large cardinal property

Sy-David Friedman (born on May 23, 1953 in Chicago) is an American and Austrian mathematician and a professor of mathematics at the University of Vienna and the director of the Kurt Gödel Research Center for Mathematical Logic. His main research interest lies in mathematical logic, in particular in set theory and recursion theory.

Friedman is the brother of mathematician Harvey Friedman.

[edit] Biography

He studied in Northwestern University and, from 1970, in Massachusetts Institute of Technology. He received his Ph.D. in 1976 from MIT (his thesis Recursion on Inadmissible Ordinals was written under the supervision of Gerald E. Sacks).

In 1979 Sy Friedman accepted a position at MIT, in 1990 became a full professor there. Since 1999 he is a professor of mathematical logic in the University of Vienna.

[edit] Selected publications and results

He authored about 70 research articles, including:

  • Friedman, Sy D. (1981). "Negative solutions to Post's problem. II". Ann. Math. (2) 113 (1): 25-43. 
  • Friedman, Sy D. (1990). "The \Pi^1_2-singleton conjecture". J. Amer. Math. Soc. 3 (4): 771-791. 
  • Friedman, Sy D (2005). "Genericity and large cardinals". J. Math. Log. 5 (2): 149-166. 

He also published a research monograph

  • Friedman, Sy D. (2000). Fine structure and class forcing, de Gruyter Series in Logic and its Applications 3. Walter de Gruyter & Co.. ISBN 3-11-016777-8. 

[edit] External links