Join us for coffee and tea at 15.30 p.m.
Date: Tuesday, November 19th 2013
Speaker: Christof Külske
Room: 5161.0293 (Bernoulliborg)
Synchronization, non-ergodicity and periodic orbits.
It has been observed experimentally that large systems of weakly coupled oscillators may show a collective behavior of switching to a synchronized motion, depending on parameter regimes.
A famous example for this is the synchronization of neurons in the brain.
We look at systems of infinitely many finite-state variables which are updated in continuous time via local stochastic rules (interacting particle systems).
Are there systems with a unique time-invariant measure which does not attract all starting measures (non-ergodicity)?Can we find periodic orbits of infinite-volume measures (showing synchronized motion)?What can we say about the domain of attraction?
We will discuss these questions and give some answers for lattice and mean-field systems.
This is joint work with Benedikt Jahnel which continues earlier research with van Enter and Opoku.
Colloquium coordinators are Prof.dr. A.C.D. van Enter (e-mail : A.C.D.van.Enter@rug.nl) and
Dr. A.V. Kiselev (e-mail:
De digitale informatietechnologie dringt steeds dieper door in onze samenleving. Daarom organiseren de veertien Nederlandse universiteiten, verenigd in de VSNU, op dinsdag 27 november de internationale Digital Society Conference in de Rijtuigenloods...
‘Do you know how often organizations select the wrong manager?’, asks Janka Stoker. ‘Recent research carried out by Gallup shows that this happens in a staggering 82% of cases! These managers were often chosen just because they happened to be very...
The Young Academy Groningen (YAG) has appointed eight new members from diverse disciplines at the University of Groningen. Dr Laura Bringmann, dr Jan Willem Bolderdijk, dr Nanna Hilton, dr Tina Kretschmer, dr Jocelien Olivier, dr Saskia Peels, dr Marleen...