Bernhard Krön (local organiser)

Bojan Mohar (Simon Fraser University, BC, Canada)

Wolfgang Woess (Graz University of Technology, Austria)

Monday (25 August 2008)

09:00-09:30 | registration, coffee |

09:30-10:20 | Vladimir TrofimovSome recent trends in graph theory related with group theory. |

10min break | |

10:30-10:55 | Franz LehnerThe spectrum of lamplighter random walks and percolation clusters on groups and graphs. |

30min coffee break | |

11:25-11:50 | Udo BaumgartnerFlat automorphism groups of totally disconnected, locally compact groups and automorphisms of graphs. |

10min break | |

12:00-12:25 | Thomas WeigelPresenting compactly generated totally disconnected locally compact groups. |

2h lunch | |

14:30-15:20 | Laurent BartholdiGrowth of groups and fractals. |

10min break | |

15:30-15:55 | Petra HitzelbergerA convexity result for affine buildings. |

30min coffee break | |

16:25-16:50 | James ParkinsonHorocyclic products of affine buildings. |

Tuesday (26 August 2008)

09:00-09:55 | Martin J. DunwoodyVertex cuts. |

10min break | |

10:05-10:30 | Martin LaubingerCoarse rigidity of (Lambda) trees. |

30min coffee break | |

11:00-11:25 | Adam TimarConnectedness of cutsets in infinite graphs. |

10min break | |

11:35-12:00 | Elmar TeuflThe projective boundary of nilpotent groups. |

1.5h lunch | |

13:30-14:30 | poster session |

from 14:30 | trip and dinner |

Wednesday (27 August 2008)

09:00-09:55 | Reinhard Diestel π _{1}(|G|), Earrings, and Free Groups. |

10min break | |

10:05-10:30 | Philipp SprüsselThe homology of locally finite graphs with ends. |

30min coffee break | |

11:00-11:25 | Agelos Georgakopoulosl-TOP: graph topologies induced by edge-lengths. |

10min break | |

11:35-12:00 | Robert GrayLocally-finite connected-homogeneous digraphs. |

2.5h lunch | |

14:30-15:20 | Vadim KaimanovichHorospheric products of random trees. |

10min break | |

15:30-15:55 | Tatiana Smirnova-NagnibedaEntropy in Outer space. |

30min coffee break | |

16:25-16:50 | Mehdi AlaeiyanCubic edge-transitive graphs of order 14p^{3}. |

Poster session

- Mehdi Aleiyan:

*Semisymmetric cubic graphs of certain order* - Gunther Bergauer:

*Profinite 2-complexes* - Lorenz Gilch:

*Rate of Escape of Random Walks on Regular Languages and Free Products by Amalgamation of Finite Groups* - Wolfgang Herfort:

*Virtually free pro-p groups* - Wilfried Huss:

*Internal Diffusion-Limited Aggregation* - Ecaterina Sava:

*The Poisson boundary of lamplighter random walks on general graphs* - Florian Sobiezky:

*Bounds on the expected return probability of 2-dimensional critical Bernoulli bond-perculation* - Ondrej Such:

*Finite groups acting on...?* - Andreas Zastrow:

*Bond systems, thickened trees and infinite commutator products*

For the trip you will need comfortable walking shoes, water and (hopefully) sun protection. Don't forget your camera. We go by tram to the vine growing area at the hills in the north of Vienna.

We will walk some nice paths through the vineyards. There is a bit of uphill walking, 2h walking in total if you go slowly.

The more ambitious walkers can go to the top of Kahlenberg which is also offering nice views over Vienna.

After the walk we will meet in Nussdorf at "Steinschaden" where we have dinner. This is a typical Viennese "Heuriger", a basic "restaurant" where the owners of a winery sell their products. At night the tram line D will bring you back to the city