AMS Special Session on
Differential Algebra and Related Topics

The following is an updated schedule for the Special Session. For a full schedule of the meeting and abstracts, please visit the AMS web site. Please note that the following changes have been made and were not reflected in the full schedule there.

Some parking information for the Special Session is given after the schedule.

Saturday November 4, 2000

8:30 a.m.
Using Ritt's characteristic sets to compute the normalizers of the
intransitive Lie algebras of vector fields on the plane.
Phyllis Cassidy*, Smith College (emerita) (959-12-283)

9:00 a.m.
Computing the Galois Group of $y^{(3)} + ay' + by = 0,\ a, b \in {\mathcal
C}[x]$.
Peter H Berman*, North Carolina State University (959-12-178)

9:30 a.m.
Prounipotent Groups in Differential Galois Theory.
Andy R Magid*, University of Oklahoma (959-12-157)

10:00 a.m.
On a Generic Inverse Differential Galois Problem for GL$_n$.
Lourdes Juan*, MSRI (959-13-123)

10:30 a.m.
Model Theory and Differential Algebra.
David E Marker*, University of Illinois at Chicago (959-03-128)


2:30 p.m.
Central configurations in the Newtonian N-body problem of Celestial
Mechanics.
Ilias Kotsireas*, Ontario Research Centre for Computer Algebra (959-70-269)

3:00 p.m.
On Applications of Cartan's Method of Moving Frames.
Irina A Kogan*, Yale University (959-53-237)

3:30 p.m.
D-modules on smooth toric varieties.
Mircea Mustata, University of California at Berkeley
Gregory Smith, University of California at Berkeley
Harrison Tsai*, Cornell University
Uli Walther, Purdue University (959-14-207)

4:00 p.m.
Differential Operators on Toric Varieties.
William N Traves*, U.S. Naval Academy
Mutsumi Saito, Hokkaido University, Japan (959-13-91)

4:30 p.m.
Rank Jumps in $A$-Hypergeometric Systems.
Laura F Matusevich*, University of California at Berkeley (959-05-138)

5:00 p.m.
Multivariable Differential Dimension Polynomials.
Alexander B Levin*, The Catholic University of America, Washington, D. C.
(959-12-102)

5:30 p.m.
Geometric and algebraic methods for differential systems.
Greg Reid*, University of Western Ontario

 

Sunday November 5, 2000


8:30 a.m.
Generalized Differential Resultants and Differential Reultant Sytems in the
Ordinary Case.
Giuseppa Carra'-Ferro*, University of Catania (959-13-259)

9:00 a.m.
A $p$-adic Algorithm for Computing Gr\"obner Bases.
Elizabeth A. Arnold*, Texas A\&M University (959-13-241)

9:30 a.m.
Characteristic Sets and Grobner Bases.
Sally D Morrison*, Bucknell University (959-12-240)

10:00 a.m.
Factorisation Free Algorithms in Differential and Difference Algebra.
Evelyne Hubert*, INRIA (959-39-226)

10:30 a.m.
Definitive Computation of Bernstein-Sato Polynomials.
Anton Leykin*, University of Minnesota (959-14-145)


2:30 p.m.
Formulas for Liouvillian solutions of (third order) linear differential
equations.
Michael F Singer, North Carolina State University
Felix A Ulmer*, Universite de Rennes 1 (959-12-115)

3:00 p.m.
On initial value problems for ordinary differential-algebraic equations.
Frank Leon Pritchard*, York College of The City University of New York
William Yu Sit, The City College of The City University of New York
(959-34-124)

3:30 p.m.
The ring of global sections of diffspec $R$.
Jerald J Kovacic*, New York, NY (959-14-85)

4:00 p.m.
Algebraic solutions of linear differential equations.
Mark van Hoeij*, Florida State University (959-34-105)

4:30 p.m.
On the invariants of linear ordinary differential equations.
Manuel Bronstein*, INRIA (959-34-220)

5:00 p.m.
Differential equations in positive characteristic.
Marius van der Put*, University of Groningen (959-34-285)

Parking for the AMS Special Session: Free (day time) parking for participants of the AMS special session on Differential Algebra and Related Topics, to be held at Columbia University on Nov 4, 5, may be arranged by sending a request with your name to William Sit, wyscc@cunyvm.cuny.edu. Please send your request no later than October 30. Street parking may be possible near Columbia University on weekends but non-metered space is usually difficult to find. The City College is located at West 138th Street and Convent Avenue, about 20 city blocks (or 20 minutes walk) north of Columbia University. There are two parking lots on campus. There is one on the south side of North Academic Center with entrance on West 135th Street between Amsterdam and Convent Avenue. There are larger parking lots on South Campus with entrance at West 133rd Street and Convent Ave. Parking must be prearranged for visitors. On Saturdays and Sundays you can almost surely park at the NAC packing lot. On arrival at the gate of the parking lot, just identify yourself by name to the guard in attendance. Handicap parking is available near the Convent Avenue end of the lot. You may leave your car for the entire day, but please do not leave any luggage or valuables visible (it is not even advisable to leave these in the car, especially if you have an out-of-state plate). Overnight parking is not allowed. To walk to Columbia University, walk west along West 135th Street for one block to Amsterdam Ave and then south for 19 blocks to 116th Street (you can also walk along Broadway, which is one block west of Amsterdam Avenue). The Mathematics Building at Columbia University is near 118th Street and Broadway. The closest subways are No. 1 and No. 9 Broadway local, which is at West 137th Street and Broadway. Take the downtown trains on the East side of Broadway, and Columbia University is 2 stops away. The fare is $1.50 for each trip. You may also get on a bus going south (make sure you ask the driver that it stops at 116th Street) on either Amsterdam Ave or Broadway. The fare is also $1.50 and you must have exact change or a metro card.