AG Algebra

Winter Semester 2000

27. October 2000

Gregor Masbaum (Paris 7)
Involutions on moduli spaces and refinements of the Verlinde formula .

3. November 2000

Jochen Kuttler (Basel)
Darstellungen von SL₂ und nulldimensionale Schemata in P_n .

10. November 2000

Stefan Helmke (Basel-Kyoto)
Affine Kac-Moody Gruppen und elliptische Singularitäten.

17. November 2000

Basel-Freiburg-Strasbourg Seminar in Freiburg
Gerald Hoehn (Freibug)
Second quantized elliptic genera and Bocherds lifts.
Michael Finkelberg (Moscow)
Quasimaps into flag varieties.
Christophe Reutenauer (Strasbourg)
On the Solomon descent algebra.

24. November 2000

Dies Accademius: no seminar.

01. December 2000

Lutz Hille (Bielefeld)
Parabolic group actions and quiver representations .

08. December 2000

Christine Lescop (Grenoble)
On the Bott and Taubes anomaly in the Chern-Simons theory for links.

15. December 2000

Anton Cox (City University)
Decomposition numbers: A classical algorithm from the quantum world.

22. December 2000

Basel-Freiburg-Strasbourg Seminar in Basel
Michele Audin (Strasbourg)
Monodromy of the spherical pendulum and generalized Jacobians.
Stefan Helmke (RIMS & University of Basel)
On base point freeness of linear systems.
Evguini Tevelev (Moscow & Basel)
Moore-Penrose inverse, parabolic subgroups, and Jordan pairs.
Olivier Schiffmann (CNRS- ENS Paris)
On the center of affine Hecke algebra of type A.

12. January 2001

Jens Lieberum (Basel University)
Vassiliev Invarianten, Überlagerungen und eine Verfeinerung eines Theorems von Hartley und Kawauchi.

19. January 2001

Georges Papadopoulo (Basel University)
Various algebraic construction related to Steenrod algebras

26. January 2001

Basel-Freiburg-Strasbourg Seminar in Strasbourg
D.N. Verma (TIFR)
Some neglected/forgotten areas of investigations in the Lie Representation Theory
Antonio Machi(Roma 1, La Sapienza)
A non-linear group: the Grigorchuk 2-group of intermediate growth
Norbert A' Campo(Basel)
Arbres plans, polynômes de Shabat, et entrelacs
Wolfgang Soergel(Freiburg)
Interpretation of Hecke Algebras via bimodules

2. February 2001

Michael Polyak (Tel-Aviv)
Finite type invariant of 3-manifolds

9. February 2001

Ian Gordon (Glasgow)
Some representations of Lie algebras and simple singularities.

16. February 2001

Andrea Maffei (Roma 1)
Quiver varieties and Weyl groups actions.

Summer Semester 2001

6. April 2001

Basel-Freiburg-Strasbourg Seminar in Strasbourg
P.Y. Gaillard (Nancy)
About some results of Beilinson, Ginzburg and Soergel.
F. Hivert (Marne-la-vallee)
Schur-Weyl duality for double cosets.
L. Vaynermann (Strasbourg)
Representations of quantum groupoids and modular categories.

13. April 2001

No seminar (eastern).

20. April 2001

Daan Krammer (Basel)
A basis for the infinitesimal braid algebra.

27. April 2001

Hanspeter Kraft (Basel)
Homaloidal Polynomials and rational covariants.

04. May 2001

Robert Wendt (University of Hamburg)
Integrals and coadjoint orbits in loop groups.

11. May 2001

Joerg Winkelmann (Tokyo University)
Elliptic curves in $SL(2,$ C)/ Γ .

18. May 2001

Lucy Moser-Jauslin (University of Dijon)
A non-linearizable action of S₃ on C⁴.

25. May 2001

No seminar.

01. June 2001

Abraham Broer(University of Montreal)
Geometrie von Punkt Mengen.

08. June 2001

Simon King (Strasbourg)
Normalflaechen und ihre Anwendungen.

Thursday, 14. June 2001

Gene Freudenburg (University of Southern Indiana)
G_a-actions on affine space: an introduction.

15. June 2001

No seminar.

Thursday, 21. June 2001 (Kolloquium at 16:30)

Gene Freudenburg (University of Southern Indiana)
A Survey of G_a-actions on affine Space.

22. June 2001

Basel-Freiburg-Strasbourg Seminar in Freiburg
A.J. Parameswaran
Geometry of low weight representations
G. Freudenburg (University of Southern Indiana)
T.B.A.
G. Lehrer
T.B.A.

Monday, 25. June 2001 (at 16:15 in kleinen Hörsaal)

G. Freudenburg (University of Southern Indiana)
G_a-actions: Two Special Cases.

29. June 2001

G. Freudenburg (University of Southern Indiana)
Counterexamples to Hilbert's 14th Problem.

Monday, 2. July 2001 (at 16:30 in kleinen Hörsaal)

Gerald Schwarz(Brandeis university)
Finite dimensional representations of invariant differential operators.