**
THE THIRD ANNUAL COLLOQUIUMFEST **

in honour of the (60+epsilon)-th Birthday of
Murray Marshall.
(organized by Franz-Viktor and Salma Kuhlmann and
Murray Marshall)

Mathematical Sciences Group

University of Saskatchewan

106 Wiggins Road, Saskatoon, SK, S7N 5E6, Canada

Phone: (306) 966-6081 - Fax: (306) 966-6086

The Third Annual Colloquiumfest was held in March 2002. We had
several seminar talks
from Monday 18th until Friday 22nd, three colloquium talks on Friday
22nd, and seven talks on Saturday 23rd.

**The Third Annual Colloquiumfest was generously supported by the
Vice-President Academic
and the Dean's Office of the
College of Arts and
Science.**

The emphasis of the colloquiumfest was on

###
Algebraic Geometry, Real Algebraic Geometry and Computational Algebra.

##
Schedule of talks

### Friday, March 22

3-4 pm:

**Edward Mosteig** (Tulane):

*An Overview of Generalized Gröbner Bases Via Valuations*

4-5 pm:

**Bernd Sturmfels** (Berkeley):

*Multigraded Hilbert Schemes*

5-6 pm:

**Pablo A. Parrilo** (ETH Zürich):

*Sums of squares, convex optimization, and the Positivstellensatz*

### Saturday, March 23

9:30-10:30 am:

**Tom Craven** (Hawaii):

*Valuation Theory and Ordered *-Rings*

10:30-11:30 am:

**Tara Smith** (Cincinnati):

*Multiplicative Subgroups of Fdot/Fdot *^{2} : Additive
Properties and Extensions

11:30 am-12:30 pm:

**Dale Cutkosky** (Missouri):

*Ramification of Valuations*

LUNCH

1:30-2:30 pm:

**Roland Auer** (Saskatoon):

*Reduction of elliptic curves in equal characteristic 2 and 3*

2:30-3:30 pm:

**Hagen Knaf** (Kaiserslautern):

*Algebras over Prüfer domains: geometrically
relevant properties and problems*

COFFEE BREAK

4-5 pm:

**Vincent Astier** (Dublin):

*Pfister's subform theorem for spaces of orderings*

5-6 pm:

**Markus Tressl** (Regensburg):

*A structure theorem for differential algebras with applications to
real, differential algebra*

7 pm, Marquis Hall:

**Banquet** (Cash bar at 6:30)

*Welcoming address by the President*

of the University of Saskatchewan, Dr. Peter MacKinnon

Further visitors from abroad were: **Danielle Gondard and
Max Dickmann (Paris)**

On the following web page, you will find information about the
University, Saskatoon, Saskatchewan, and much more:

*Last update: January 22, 2004
--------- created and maintained by Franz-Viktor Kuhlmann*