Carl Jockusch

Carl Groos Jockusch Jr. (born July 13, 1941 in San Antonio, Texas) is an American mathematician.[1] He graduated from Alamo Heights High School in 1959, attended Vanderbilt University in Nashville, Tennessee, and transferred to Swarthmore College, Pennsylvania in 1960, where he received his B.A. in 1963 with Highest Honors.[2] He then enrolled at the Massachusetts Institute of Technology. He is a member of Phi Beta Kappa and Sigma Xi.[3] In 2014, he became a Fellow of the American Mathematical Society.[4] He is a professor emeritus at the University of Illinois at Urbana–Champaign.

Carl Groos Jockusch Jr.
Carl Jockusch.jpg
Carl Jockusch in 1974
Born(1941-07-13)July 13, 1941
San Antonio, Texas, US
Spouse(s)Elizabeth A. Jockusch
Scientific career
ThesisReducibilities in recursive function theory (1966)
Doctoral advisorHartley Rogers Jr.

In 1972 Jockusch and Robert I. Soare proved the low basis theorem, an important result in mathematical logic with applications to recursion theory and reverse mathematics.

See alsoEdit


  1. ^ Who's Who in the Midwest, 1994-1995, 1994, p. 382
  2. ^ Carl G. Jockusch's Home Page
  3. ^ Bibliographical note in his PhD thesis (Jockusch, 1966), p.104
  4. ^ List of Fellows of the American Mathematical Society, retrieved 2014-12-17
  • Jockusch Jr, C.G.; Soare, R.I. (1972), "Π01 Classes and Degrees of Theories", Transactions of the American Mathematical Society, American Mathematical Society, 173: 33–56, doi:10.2307/1996261, JSTOR 1996261
  • Carl Groos Jockusch Jr. (Jun 1966). Reducibilities in recursive function theory (PDF) (Thesis). Massachusetts Institute of Technology. Archived from the original (PDF) on 2014-09-11.

External linksEdit