- Series
- Research Horizons Seminar
- Time
- Wednesday, November 11, 2009 - 12:00pm for 1 hour (actually 50 minutes)
- Location
- Skiles 171
- Speaker
- Jean Bellissard – School of Mathematics, Georgia Tech – jeanbel@math.gatech.edu
- Organizer
- Craig Sloane
An assembly of atoms in a solid phase will be described through the notion
of Delone sets and related to tilings. The Hull and the tiling space wiill
be defined. It will be shown that the tiling space and the Hull can be
constructed through an inverse limit of CW-complexes built out of the
tiles and of the local patches. From then various cohomologies can be
defined and allow to distinguish between these atomic distributions. The
question of whether these topological invariant can be seen in experiments
will be addressed.