AMS Sectional Meeting Program by Special Session

Current as of Tuesday, April 12, 2005 15:08:34

Program | Deadlines | Inquiries: meet@ams.org

Associate secretaries:
Andy R Magid, AMS amagid@ou.edu

Friday May 19, 1989, 7:00 a.m.-9:50 a.m.
Special Session on Quadratic Forms and Real Algebraic Geometry, I
Room 342, Damen Hall
- 7:00 a.m.
  Sums of squares in Witt rings.
  D. W. Lewis*, University College of Dublin, Republic of Ireland
  (849-11-168)
- 7:30 a.m.
  Witt kernels of algebraic extensions.
  David B. Leep*, University of Kentucky
  (849-12-142)
- 8:00 a.m.
  On the structure of the Clifford algebra over a commutative ring.
  Alexander J. Hahn*, University of Notre Dame
  (849-15-13)
- 8:30 a.m.
  Galois groups over C-fields.
  Tara L. Smith*, Ohio State University, Columbus
  J\'an Min\'a\v c, University of Western Ontario
  (849-12-32)
- 9:00 a.m.
  Informal Discussion
- 9:30 a.m.
  Picard groups of Witt rings.
  Robert W. Fitzgerald*, Southern Illinois University, Carbondale
  (849-11-110)

Friday May 19, 1989, 2:00 p.m.-4:50 p.m.
Special Session on Quadratic Forms and Real Algebraic Geometry, II
Room 342, Damen Hall
- 2:00 p.m.
  A sup-inf-polynomially varying solution to Hilbert's $17$th problem.
  Charles N. Delzell*, Louisiana State University, Baton Rouge
  (849-14-160)
- 2:30 p.m.
  Places on *-fields and the real holomorphy ring.
  Thomas C. Craven*, University of Hawaii, Honolulu
  (849-12-26)
- 3:00 p.m.
  Orders and order closures for not necessarily formally real fields.
  Ron Brown*, University of Hawaii, Honolulu
  (849-12-113)
- 3:30 p.m.
  Witt rings and spaces of orderings of projective planes.
  Franz Kalhoff*, University of Dortmund, Federal Republic of Germany
  (849-11-203)
- 4:00 p.m.
  Signatures of higher level on rings with many units.
  M. Marshall, University of Saskatchewan
  L. Walter*, University of Saskatchewan
  (849-13-19)
- 4:30 p.m.
  Higher level orders on noncommutative rings.
  Victoria A. Powers*, Emory University
  (849-06-177)

Saturday May 20, 1989, 7:00 a.m.-9:50 a.m.
Special Session on Quadratic Forms and Real Algebraic Geometry, III
Room 342, Damen Hall
- 7:00 a.m.
  The real spectrum of higher level of a commutative ring.
  Susan Barton*, Pennsylvania State University, Delaware County Campus
  (849-13-140)
- 7:30 a.m.
  Nonarchimedean real analysis.
  Robby Robson*, Oregon State University
  (849-14-24)
- 8:00 a.m.
  Nash groups.
  J. Madden*, Indiana University, South Bend
  C. Stanton, Indiana University, South Bend
  (849-22-143)
- 8:30 a.m.
  Some new Vapnik-Chervonenkis classes.
  Gilbert Stengle*, Lehigh University
  Joseph Yukich, Lehigh University
  (849-14-27)
- 9:00 a.m.
  Spinor norms of similarities.
  D. B. Shapiro*, Ohio State University, Columbus
  I. Alarcon, Ohio State University, Columbus
  (849-15-78)
- 9:30 a.m.
  Round quadratic forms under algebraic extensions.
  Burkhard Alpers*, University of Saskatchewan
  (849-11-44)

Saturday May 20, 1989, 2:00 p.m.-4:50 p.m.
Special Session on Quadratic Forms and Real Algebraic Geometry, IV
Room 342, Damen Hall
- 2:00 p.m.
  An introduction to blenders.
  Bruce Reznick*, University of Illinois, Urbana-Champaign
  (849-15-114)
- 2:30 p.m.
  Quadratic forms over function-fields of elliptic and hyperelliptic curves.
  Jonathan E. Shick*, University of California at San Diego, La Jolla
  (849-12-64)
- 3:00 p.m.
  Automorphism groups of positive definite integral quadratic forms.
  John S. Hsia*, Ohio State University, Columbus
  (849-11-62)
- 3:30 p.m.
  Integral quadratic forms whose class and spinor genus coincide.
  Andrew G. Earnest*, Southern Illinois University, Carbondale
  (849-11-73)
- 4:00 p.m.
  Even unimodular positive definite quadratic forms over real quadratic fields.
  David C. Hung*, State University of New York, Binghamton
  (849-11-63)
- 4:30 p.m.
  Trace forms over Hilbertian and Henselian fields.
  Martin Kruskemper*, University of Saskatchewan
  (849-12-28)

Inquiries: meet@ams.org