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Steve Jackson (mathematician)

Steve Jackson (full name: Stephen Craig Jackson) is an American set theorist at the University of North Texas.[1] Much of his most notable work has involved the descriptive set-theoretic consequences of the axiom of determinacy.[2] In particular he is known for having calculated the values of all the projective ordinals (the suprema of the lengths of all prewellorderings of the real numbers at a particular level in the projective hierarchy) under the assumption that the axiom of determinacy holds.

In recent years he has also made contributions to the theory of Borel equivalence relations. With Dan Mauldin he solved the Steinhaus lattice problem.[3][4]

Jackson earned his PhD in 1983 at UCLA under the direction of Donald A. Martin, with a dissertation on A Calculation of δ15. In it, he proved that, under the axiom of determinacy,

thereby solving the first Victoria Delfino problem,[5] one of the notorious problems of the combinatorics of the axiom of determinacy.

References edit

  1. ^ "Stephen Jackson – UNT Faculty Profile". facultyinfo.unt.edu. Retrieved 2022-10-02.
  2. ^ Jackson, Stephen Craig. "Faculty Profile CV". facultyinfo.unt.edu. Retrieved 2022-10-02.
  3. ^ Jackson, Steve; Mauldin, R. (2002). "On a lattice problem of H. Steinhaus". Journal of the American Mathematical Society. 15 (4): 817–856. doi:10.1090/S0894-0347-02-00400-9. ISSN 0894-0347.
  4. ^ Jackson, Steve; Mauldin, R. Daniel (2003). "Survey of the Steinhaus Tiling Problem". Bulletin of Symbolic Logic. 9 (3): 335–361. doi:10.2178/bsl/1058448676. ISSN 1079-8986.
  5. ^ Caicedo, Andrés Eduardo; Löw, Benedikt (2020), Kechris, Alexander S.; Löwe, Benedikt; Steel, John R. (eds.), "The fourteen Victoria Delfino problems and their status in the year 2020", Large Cardinals, Determinacy and Other Topics: The Cabal Seminar, Volume IV, Lecture Notes in Logic, vol. 4, Cambridge: Cambridge University Press, pp. 248–280, ISBN 978-1-107-18299-8

External links edit


steve, jackson, mathematician, steve, jackson, full, name, stephen, craig, jackson, american, theorist, university, north, texas, much, most, notable, work, involved, descriptive, theoretic, consequences, axiom, determinacy, particular, known, having, calculat. Steve Jackson full name Stephen Craig Jackson is an American set theorist at the University of North Texas 1 Much of his most notable work has involved the descriptive set theoretic consequences of the axiom of determinacy 2 In particular he is known for having calculated the values of all the projective ordinals the suprema of the lengths of all prewellorderings of the real numbers at a particular level in the projective hierarchy under the assumption that the axiom of determinacy holds In recent years he has also made contributions to the theory of Borel equivalence relations With Dan Mauldin he solved the Steinhaus lattice problem 3 4 Jackson earned his PhD in 1983 at UCLA under the direction of Donald A Martin with a dissertation on A Calculation of d15 In it he proved that under the axiom of determinacy d 5 1 ℵ w w w 1 displaystyle mathbf delta 5 1 aleph omega omega omega 1 thereby solving the first Victoria Delfino problem 5 one of the notorious problems of the combinatorics of the axiom of determinacy References edit Stephen Jackson UNT Faculty Profile facultyinfo unt edu Retrieved 2022 10 02 Jackson Stephen Craig Faculty Profile CV facultyinfo unt edu Retrieved 2022 10 02 Jackson Steve Mauldin R 2002 On a lattice problem of H Steinhaus Journal of the American Mathematical Society 15 4 817 856 doi 10 1090 S0894 0347 02 00400 9 ISSN 0894 0347 Jackson Steve Mauldin R Daniel 2003 Survey of the Steinhaus Tiling Problem Bulletin of Symbolic Logic 9 3 335 361 doi 10 2178 bsl 1058448676 ISSN 1079 8986 Caicedo Andres Eduardo Low Benedikt 2020 Kechris Alexander S Lowe Benedikt Steel John R eds The fourteen Victoria Delfino problems and their status in the year 2020 Large Cardinals Determinacy and Other Topics The Cabal Seminar Volume IV Lecture Notes in Logic vol 4 Cambridge Cambridge University Press pp 248 280 ISBN 978 1 107 18299 8External links editList of papers published by Steve Jackson Steve Jackson at the Mathematics Genealogy Project nbsp nbsp nbsp This article about an American mathematician is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Steve Jackson mathematician amp oldid 1192661496, wikipedia, wiki, book, books, library,

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