Monday, January 30, 2012
Technische Universität Berlin
Institut für Mathematik
Str. des 17. Juni 136
10623 Berlin
MA 041
Lecture - 14:15
Abstract:
Intelligent route planning is a key ingredient in logistics and traffic. One wants to utilize the available logistics of traffic network in such a way that the total network load is minimized or the throughput is maximized. This lecture deals with these optimization problems with a combination of scheduling and dynamic network flow techniques. I will present several applications including our recent work on improved traffic guidance policies based on macroscopic optimization models and toll policies, and on optimizing ship traffic on the Kiel Canal. The latter is a project in cooperation with the German Federal Waterways and Shipping Administration.
Colloquium - 16:00
Abstract:
We present a new family of simplicial complexes called multi-cluster
complexes. These complexes generalize the concept of cluster complexes,
and extend the notion of multi-associahedra to arbitrary finite Coxeter
groups. We present combinatorial and geometric properties of these
objects, as well as open problems and conjectures. This is joint work with
Jean-Philippe Labbé and Christian Stump.