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Sy Friedman

Austrian American mathematician

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.

Contents

  • 1 Biography
  • 2 Selected publications and results
  • 3 References
  • 4 External links

Biography

He studied at Northwestern University and, from 1970, at the M*achusetts Ins*ute 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 (since 2018 retired). He is a Fellow of Collegium Invisibile.

Selected publications and results

He has aut*d about 70 research articles, including:

  • Friedman, Sy D. (1981). "Negative solutions to Post's problem. II". Annals of Mathematics. Second Series. 113 (1): 25–43. doi:10.2307/1971132. JSTOR:1971132.
  • Friedman, Sy (1985). "A guide to "Coding the Universe" by Beller, Jensen, Welch". Journal of Symbolic Logic. 50 (4): 1002–1019. doi:10.2307/2273986. JSTOR:2273986.
  • Friedman, Sy D. (1990). "The Π 2 1 {displaystyle Pi _{2}^{1}} -singleton conjecture". J. Amer. Math. Soc. 3 (4): 771–791. doi:10.1090/S0894-0347-1990-1071116-6.
  • Friedman, Sy D (2005). "Genericity and large cardinals". J. Math. Log. 5 (2): 149–166. CiteSeerX:10.1.1.23.9437. doi:10.1142/S0219061305000420.

He also published a research monograph

  • Friedman, Sy D. (2000). Fine structure and cl* forcing. de Gruyter Series in Logic and its Applications. Vol.:3. Berlin: Walter de Gruyter & Co. ISBN:978-3-11-016777-1.

References

    External links

    • Sy Friedman at the Mathematics Genealogy Project