8:00 a.m. Uniform denominators in Hilbert's 17th problem. Bruce Reznick*, University of Illinois, Urbana-Champaign
(889-11-70)
8:30 a.m. Ext-algebras and abstract Witt rings. Robert W. Fitzgerald*, Southern Illinois University, Carbondale
(889-11-69)
9:00 a.m. A local-global theorem for Skew-Hermitian forms over quaternion algebras. Owen Thomas*, Ohio Dominican College
(889-15-246)
9:30 a.m. Embedding of quadratic forms into Pfister forms. Detlev W. Hoffmann*, Institute for Experimental Mathematics, Germany
(889-11-298)
10:00 a.m. Index reduction formulas for twisted homogeneous varieties. A. S. Merkurjev, St Petersburg State University, Russia
I. A. Panin, Steklov Mathematical Institute, Russia
A. R. Wadsworth*, University of California at San Diego, La Jolla
(889-16-93)
2:15 p.m. Kummer subfields of tame division algebras. Patrick J. Morandi, New Mexico State University, Las Cruces
B. A. Sethuraman*, California State University, Northridge
(889-16-226)
2:45 p.m. The generalized even Clifford algebra for algebra with involution. David Tao*, University of Texas, Austin
(889-15-36)
3:15 p.m. Noncrossed product division algebras with a Baer ordering. Patrick J. Morandi*, New Mexico State University, Las Cruces
B. A. Sethuraman, California State University, Northridge
(889-16-12)
3:45 p.m. Noncrossed product division algebras over Q(t) and Q((t)). Eric Brussel*, Harvard University
(889-16-678)
4:15 p.m. On dihedral algebras and conjugate splittings. Darrell Haile*, Indiana University, Bloomington
(889-16-733)
4:45 p.m. Crossed products over algebraic function fields. Burt Fein*, Oregon State University
Murray M. Schacher, University of California, Los Angeles
(889-12-71)
5:15 p.m. Groups admissible over bold Q (t) and bold Q ((t)). Murray Schacher*, University of California, Los Angeles
Burt Fein, Oregon State University
(889-12-11)
8:00 a.m. The Witt ring of an elliptic curve. Bill Jacob*, University of California, Santa Barbara
(889-12-723)
8:30 a.m. Witt rings of elliptic curves over elementary type fields. Robert Schwennicke*, University of California, Santa Barbara
(889-14-791)
9:00 a.m. On Witt groups of surfaces over local fields. R. Sujatha*, Ohio State University, Columbus
Shuji Saito, University of Tokyo, Japan
(889-14-242)
9:30 a.m. u-invariant computations. Charles Yeomans*, Lexington, Kentucky
(889-12-370)
10:00 a.m. The similarity group of a trace form of higher degree. Manuel O'Ryan*, University of Talca, Chile
Daniel B. Shapiro, Ohio State University, Columbus
(889-15-589)
10:30 a.m. A note on the Kaplansky radical. Roger Ware*, Pennsylvania State University, University Park
(889-12-218)
2:15 p.m. Extension of orderings on *-fields. Thomas C. Craven*, University of Hawaii, Honolulu
(889-12-343)
2:45 p.m. The real holomorphy ring and sums of powers in commutative rings. Eberhard Becker, University of Dortmund, Germany
Victoria Powers*, Emory University
(889-11-105)
3:15 p.m. The higher level real spectrum of a commutative ring. Leslie Walter*, University of Saskatchewan
Murray Marshall, University of Saskatchewan
(889-13-227)
3:45 p.m. An approximation theorem for coarse V-topologies on rings. Murray A. Marshall*, University of Saskatchewan
(889-12-104)