[This is the old program from SS 2006. The current program and contact information can be found here.]

28 April 2006, 16:00

Dorothea Busse (Institut für Biologie, Humboldt-Universität zu Berlin)
Spatio-temporal dynamics of cell signalling [Abstract]

19 May 2006, 16:00

Karsten Reuter (Abteilung Theorie, Fritz-Haber-Institut der MPG, Berlin)
First-principles statistical mechanics approaches to heterogeneous catalysis [Abstract]

02 June 2006, 16:00

Blas Echebarría (Departament de Física Aplicada, Universitat Politècnica de Catalunya, Barcelona, Spain)
Instabilities of scroll waves in excitable media

Abstract:
The stability of spiral waves in excitable (and oscillatory) media has been an active field of research in latter years. This is partly due to their importance in cardiac dynamics, since spiral break-up is thought to underline the life-threatening transition from ventricular tachycardia into ventricular fibrillation. In this talk we will review some recent progress on the stability of scroll waves, the three dimensional counterpart of spirals. Apart from those common with spirals, scroll waves can present specific instabilities linked to their three dimensional character, as those due to negative line tension, or twist. We will pay special attention to situations of potential interest in cardiac dynamics, as spatial gradients of excitability, or rotating anisotropy.

23 June 2006, 16:00

Hermann Riecke (Department of Engineering Sciences and Applied Mathematics, Northwestern University, Evanston, USA)
Spatio-temporal chaos in convection: defects, bursts, and spirals [Abstract]

14 July 2006, 16:00

Martin Baurmann (Institut für Chemie und Biologie des Meeres, Carl-von-Ossietzky-Universität Oldenburg)
Pattern formation in microbiogeochemical models [Abstract]