### Conference venue

The conference will take place in the building of the Mathematics Institutes, Steyrergasse 30, lecture room BE01, ground floor. (See "Accomodation" for a map.)

## Monday, June 29

### Morning session

08^{30}-9^{00} | Registration for the workshop |

09^{00}-09^{10} |
Opening |

09^{10}-10^{00} |
Francois Ledrappier Linear drift for the Brownian motion on covers |

10^{10}-10^{40} | Coffee break (registration) |

10^{40}-11^{10} | Martin DunwoodyAn inaccessible graph |

11^{20}-11^{50} | Panos PapazoglouTopology of boundaries and splittings |

12^{00}-12^{20} | Barbara BobikauSpectral properties of a class of random walks on locally finite groups |

### Afternoon session - Massimo Picardello's birthday session

14^{30}-15^{20} |
Massimo Picardello Harmonic functions on homogeneous trees and buildings |

15^{30}-16^{00} |
Sara BrofferioPoisson boundary of matrix groups
with rational coefficients |

16^{10}-16^{40} |
Coffee break |

16^{40}-17^{30} |
Yves Guivarc'h Random walk in a random medium on Z, and random walks on homogeneous spaces |

17^{40}-18^{00} |
Daniele D'AngeliThe boundary action of the Basilica group |

## Tuesday, June 30

### Morning session

09^{00}-09^{50} | Tim RileyHow wild can a group with a quadratic Dehn function be? |

10^{00}-10^{30} | Coffee break |

10^{40}-11^{10} | Anton ThalmaierThe Poisson boundary of certain Cartan-Hadamard manifolds of unbounded curvature |

11^{20}-11^{50} | Alexander GnedinBoundaries of the generalised Pascal triangles and larger graded graphs |

12^{00}-12^{20}
| Jeremy MacdonaldCompressed words and automorphisms in fully residually
free groups |

### Afternoon session - Donald Cartwright's birthday session

14^{30}-15^{20} |
Tim StegerBackground on fake planes |

15^{30}-16^{00} | Jean LécureuxCombinatorial boundaries of buildings |

16^{10}-16^{40} |
Coffee break |

16^{40}-17^{30} |
Donald CartwrightThe 50 fake projective planes |

17^{40}-18^{00} | Bernhard KrönVertex cuts, ends and group splittings |

## Wednesday, July 1

### Morning session

09^{00}-09^{50} | Anna ErschlerBoundaries of amenable groups |

10^{00}-10^{50} | Coffee
break and poster session Posters: Elisabetta Candellero, Lorenz Gilch, Motoko Kotani, Jeremy Macdonald, Sebastian Müller, Svetla Vassileva. |

10^{50}-11^{20} | Matthias KellerHeat transfer to the boundary on discrete graphs |

11^{30}-12^{00} | Erin PearseResistance analysis of infinite networks |

### Afternoon: Conference excursion

## Thursday, July 2

### Morning session

09^{00}-09^{50} | James ParkinsonRandom walks on p-adic groups and affine buildings |

10^{00}-10^{30} | Coffee break |

10^{40}-11^{10} |
Agelos GeorgakopoulosUniqueness of currents in an electrical network
of finite total resistance |

11^{20}-11^{50} | Riddhi ShahDistal actions on locally compact groups |

### Afternoon session - Vadim Kaimanovich's birthday session

14^{30}-15^{20} | Vadim
KaimanovichRandom graphs, stochastic homogenization
and eqiuvalence relations |

15^{30}-16^{00} |
Alexander BendikovOn a class of random walks on groups with
infinite number of generators |

16^{10}-16^{40} |
Coffee break |

16^{40}-17^{30} | Volodymyr NekrashevychHyperbolic duality |

17^{40}-18^{00} | Frédéric MathéusPoisson boundary of free-by-cyclic groups |

## Friday, July 3

### Morning session

09^{00}-09^{50} | Klaus SchmidtSandpiles and the harmonic model |

10^{00}-10^{30} | Coffee break |

10^{40}-11^{10} | Tatiana Smirnova-NagnibedaSandpiles and self-similar groups |

11^{20}-11^{50} | Markus NeuhauserFurther examples to a question of Atiyah |

### Afternoon session - farewell session

13^{30}-14^{00} | Michael BjörklundSharp sumset inequalities for Bohr sets |

14^{10}-15^{00} | Anatoly VershikAdjoint dynamics of countable groups |

15^{00}-15^{30} | Coffee break |

Speaker:

**Prof. Dr. Douglas Hardin**(Vanderbilt University, Nashville TN)

Title of the talk:

*Discrete minimum energy problems*

Last modified on June 29, 2009 by W.W.