Sy Friedman
{{short description|Austrian American mathematician}}
{{Infobox scientist
| name = Sy-David Friedman
| image = SFriedman.jpg
| image_size = 300px
| caption = Professor Sy Friedman before a lecture during The First European Set Theory Meeting, Będlewo (Poland), July 2007
| birth_date = {{Birth date and age|1953|5|6}}
| birth_place = Chicago
| nationality = American/Austrian
| ethnicity =
| field = Mathematician
| work_institution = University of Vienna
| alma_mater = MIT
| doctoral_advisor = Gerald E. Sacks
| doctoral_students =
| known_for = Mathematical logic, Set theory, Large cardinal property
| prizes =
| footnotes =
}}
Sy-David Friedman (born May 23, 1953, in Chicago) is an American and Austrian mathematician and a (retired) professor of mathematics at the University of Vienna and the former 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 Ilene Friedman and the brother of mathematician Harvey Friedman.
Biography
He studied at Northwestern University and, from 1970, at the 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, and in 1990 he became a full professor there. Since 1999, he has been a professor of mathematical logic at the University of Vienna, and he retired in 2018.{{cite web|url=https://kgrc.univie.ac.at/news-archive/|archive-url=https://web.archive.org/web/20240515213004/https://kgrc.univie.ac.at/news-archive/|title=News archive|archive-date=2024-05-15|website=Key Research Area Logic|publisher=University of Vienna}} He is a Fellow of Collegium Invisibile.{{cite web |url=http://www.ci.edu.pl/index.php?id=tutorzy&kat=Czlonkowie |title=List of Fellows |publisher=ci.edu.pl |accessdate=10 May 2012}}
Selected publications and results
He has authored about 70 research articles, including:
- {{cite journal|title=Negative solutions to Post's problem. II|author=Friedman, Sy D.|journal=Annals of Mathematics | series = Second Series|volume=113|year=1981|issue=1|pages=25–43|doi=10.2307/1971132|jstor=1971132}}
- {{cite journal|title=A guide to "Coding the Universe" by Beller, Jensen, Welch|author=Friedman, Sy|journal=Journal of Symbolic Logic|volume=50|year=1985|issue=4|pages=1002–1019|doi=10.2307/2273986|jstor=2273986}}
- {{cite journal|title=The -singleton conjecture|author= Friedman, Sy D.|journal=J. Amer. Math. Soc.|volume=3|year=1990|issue=4|pages=771–791|doi=10.1090/S0894-0347-1990-1071116-6|doi-access=free}}
- {{cite journal|title=Genericity and large cardinals|author= Friedman, Sy D|journal=J. Math. Log. |year=2005|volume=5|issue=2|pages=149–166|doi=10.1142/S0219061305000420|citeseerx= 10.1.1.23.9437}}
He also published a research monograph
- {{cite book|last=Friedman|first=Sy D.|title= Fine structure and class forcing|publisher= Walter de Gruyter & Co. | series=de Gruyter Series in Logic and its Applications|volume =3|place=Berlin|year=2000|isbn=978-3-11-016777-1}}
References
{{reflist}}
External links
- {{MathGenealogy|id=62291}}
{{Authority control}}
{{DEFAULTSORT:Friedman, Sy D.}}
Category:20th-century American mathematicians
Category:21st-century American mathematicians
Category:Austrian mathematicians
Category:American emigrants to Austria
Category:Fellows of Collegium Invisibile
Category:Massachusetts Institute of Technology alumni
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