The "Seminar Algebra & Topologie" takes place every Friday from 10.30 to 12.00 in the "Kleiner Hörsaal" (Mathematisches Institut, Rheinsprung 21) unless there is a Basel-Freiburg-Strassburg Seminar.

Programm Wintersemester 2006/07

27. Oktober: Baptiste Calmès (ETH Zürich): Motives: ideas and examples (abstract)

3. November: Mikhail Zaidenberg (Université Grenoble I): Uniqueness problem for group actions on affine surfaces (abstract)

10. November: Paul Balmer (ETH Zürich): Tensor triangular geometry (abstract)

17. November: Jérémy Blanc (Université de Nice): Automorphisms of Affine and Projective Surfaces and their Fixed Points (abstract)

24. November: Dies Academicus

1. Dezember: Nikita Karpenko (Paris, Jussieu): Motives and Quadratic Forms (abstract)

8. Dezember: Markus Brodmann (Universität Zürich): Bounds for the Castelnuovo-Mumford regularity (abstract)

15. Dezember: Kirill Zainoulline (Universität München): J-invariant of linear algebraic groups (abstract)

12. Januar: Oberwolfach Workshop on Affine Algebraic Geometry, Seminar canceled.

19. Januar: Stefan Gille (Universität München): A Gersten complex for hermitian Witt groups of Azumaya algebras with involution (abstract)

26. Januar: Fabien Morel (Universität München): The theory of the Euler class for algebraic vector bundles over smooth k-algebras (abstract)

2. Februar: Emmanuel Lequeu (Université de La Rochelle): SL_1(A) and essential dimension (abstract)

9. Februar: Philippe Bonnet (University of Basel): On algebraic automorphisms and their rational invariants (abstract)

16. Februar: Grégory Berhuy (University of Southampton): Applications of central simple algebras to wireless communication (abstract)

Programm Sommersemester 2007

30. März: Jean Fasel (ETH Zürich): Hermitian K-Theory and Chow-Witt groups (abstract)

6. April: Easter, no seminar.

13. April: Karim Becher (Universität Konstanz): Körperinvarianten in der Theorie der quadratischen Formen (abstract)

20. April: Seminar cancelled, talk reported to 29th June

27. April: Stefan Maubach (Radboud University Nijmegen): Locally finite polynomial maps (abstract)

4. Mai: Jacques Alev (Université de Reims): Automorphisms of affine space, old and new (abstract)

11. Mai: Markus Brodmann (Universität Zürich): Asymptotic behaviour of cohomology of proper schemes (abstract)

18. Mai: Auffahrt, no seminar.

25. Mai: Elisa Gorla (Universität Zürich): Elliptic curves, pairings, and the Discrete Logarithm Problem (abstract)

1. Juni: Euler Symposium, no seminar

8. Juni: Mathieu Florence (EPF Lausanne): On the essential dimension of cyclic p-groups (abstract)

15. Juni: Jerzy Weyman (NEU Boston): Counterexamples to Okounkov log-concavity conjectures (abstract)

22. Juni: Philippe Gille (ENS Paris): Lower bounds for the essential dimension of reductive groups

29. Juni: Burt Totaro (Cambridge): The automorphism group of an affine quadric (abstract)