Alessandro Andretta, Gianluca Basso, Riccardo Camerlo, Vassilis Gregoriades, Luca Motto Ros and Matteo Viale

Department of Mathematics
"Giuseppe Peano",

Palazzo Campana,
via Carlo Alberto 10, Torino.

All talks will take place in Aula A, ground floor. To reach Aula A, enter the building, turn right in
the first corridor, at the end which you will turn left. At the end of this corridor turn left again
and exit in the courtyard. In front of you is Aula A.

- 09:00 - Registration
- 09:30 to 10:20 - Gabriel Debs
###### The hyperspace of closed zero-dimensional subsets of a Polish space

- 10:30 to 11:00 - Coffee Break
- 11:00 to 11:25 - Dominique Lecomte
###### Universal and complete sets in martingale theory

- 11:30 to 11:55 - Miroslav Zeleny
###### Convergence of a typical martingale (

**Slides**)- 12:00 to 13:30 - Lunch
- 13:30 - 14:30 Discussion Session: Contributions by Silvia Steila, Yann Pequignot, Itaï Ben Yacoov, and Jean Saint-Raymond.
- 14:30 to 14:55 - Sy-David Friedman
###### The Consistency of Uniformisation (

**Slides**)- 15:00 to 15:50 - Forte Shinko
###### Hyperfiniteness of boundary actions of cubulated hyperbolic groups (

**Slides**)- 16:00 to 16:30 - Coffee Break
- 16:30 to 16:55 - Maciej Malicki
###### Generic representations of countable groups (

**Slides**)- 17:00 to 17:25 - Philipp Schlicht
###### Combinatorial Variants of Lebesgue's density theorem (

**Slides**)

- 09:00 to 09:50 - Julien Melleray
###### Complexity of orbit equivalence of minimal homeomorphisms on a Cantor space

- 10:00 to 10:25 - Mirna Dzamonja
###### Descriptive and combinatorial set theory at singular cardinals and their successors (

**Slides**)- 10:30 to 11:00 - Coffee Break
- 11:00 to 11:25 - Donát Nagy
###### Simple witnesses of Haar null sets (

**Slides**)- 11:30 to 11:55 - Márk Poór
###### Cardinal invariants of Haar null sets (

**Slides**)- 12:00 to 13:30 - Lunch
- 13:30 - 14:30 Discussion Session: Contributions by Dorottya Sziraki, Riccardo Camerlo, Louis Vuilleumier, and Petr Holicky.
- 14:30 to 14:55 - Jacques Duparc
###### On the Exponentiation inside the Wadge Hierarchy (

**Slides**)- 15:00 to 15:25 - Vladimir Kanovei
###### Definable minimal collapse functions at arbitrary projective levels (

**Slides**)- 15:30 to 15:55 - Pandelis Dodos
###### Uniformity norms and their weaker versions

- 16:00 to 16:30 - Coffee Break
- 16:30 to 16:55 - Raphael Carroy
###### Projective homogeneous spaces and Wadge theory

- 17:00 to 17:25 - Lionel Nguyen Van Thé
###### On a remark on Glasner's problem (

**Slides**)- Social Dinner at Ristorante Quadre (map)

- 09:00 to 09:50 - Stephen Jackson
###### Undecidability of the graph homomorphism problem for action of $\mathbb Z^2$ (

**Slides**)- 10:00 to 10:25 - Michal Doucha
###### Generic unitary representations (

**Slides**)- 10:30 to 11:00 - Coffee Break
- 11:00 to 11:25 - Vojta Kovarik
###### Absolute F-Borel spaces (

**Slides**)- 11:30 to 11:55 - Filippo Calderoni
###### The bi-embeddability relation on countable torsion-free abelian groups (

**Slides**)- 12:00 to 13:30 - Lunch
- 13:30 - 14:30 Discussion Session: Contributions by Filippo Cavallari, Vibeke Quorning, Giorgio Laguzzi, and Andrea Vaccaro.
- 14:30 to 14:55 - Asger Tornquist
###### Mad families, definability, and ideals, Part 1 (

**Slides**)- 15:00 to 15:25 - David Schrittesser
###### Mad families, definability, and ideals, Part 2 (

**Slides**)- 16:00 - Coffee and farewell

Alessandro Andretta, *Università di Torino*.

Gianluca Basso, *Université de Lausanne and Università di Torino*.

Itaï Ben Yaacov, *Université Claude Bernard Lyon 1*.

Filippo Calderoni, *Università di Torino*.

Riccardo Camerlo, *Polytechnic of Turin*.

Raphael Carroy, *Kurt Gödel Research Center*.

Filippo Cavallari, *University of Turin, University of Lausanne*.

Gabriel Debs, *Institut Mathématique de Jussieu*.

Pandelis Dodos, *Department of Mathematics, University of Athens*.

Michal Doucha, *Institute of Mathematics, Czech Academy of Sciences*.

Jacques Duparc, *University of Lausanne*.

Mirna Dzamonja, *University of East Anglia*.

Sy-David Friedman, *Kurt Gödel Research Center, U.Vienna*.

Vassilios Gregoriades, *University of Turin*.

Petr Holicky, *Charles University, Prague*.

Stephen Jackson, *University of North Texas*.

Vladimir Kanovei, *Institute for the Information Transmission Problems*.

Vojta Kovarik, *Charles University, Prague*.

Giorgio Laguzzi, *University of Freiburg*.

Dominique Lecomte, *Université Pierre et Marie Curie*.

Maciej Malicki, *Warsaw School of Economics*.

Julien Melleray, *Université Lyon 1*.

Luca Motto Ros, *University of Turin*.

Donát Nagy, *Eötvös Loránd University, Budapest*.

Lionel Nguyen Van Thé, *Aix-Marseille University*.

Yann Pequignot, *University of California, Los Angeles*.

Márk Poór, *Eötvös University, Budapest*.

Vibeke Quorning, *University of Copenhagen*.

Jean Saint Raymond, *Université Pierre et Marie Curie - Paris 6*.

Philipp Schlicht, *University of Bonn*.

David Schrittesser, *Kurt Gödel Research Center*.

Forte Shinko, *McGill University*.

Silvia Steila, *University of Bern*.

Dorottya Sziraki, *Alfred Renyi Institute of Mathematics, and Central European University*.

Asger Tornquist, *University of Copenhagen*.

Andrea Vaccaro, *Università di Pisa - York University*.

Matteo Viale, *Università di Torino*.

Louis Vuilleumier, *Université de Lausanne*.

Domenico Zambella, *Università di Torino*.

Miroslav Zeleny, *Faculty of mathematics and physics, Charles University, Prague, Czech Republic*.

The workshop is generously funded by

- The Department of mathematics "Giuseppe Peano"

- Programma Giovani Ricercatori "Rita Levi Montalcini", "Nuovi sviluppi in teoria descrittiva degli insiemi", (PI:Luca Motto Ros)

- PRIN 2012 "Modelli e insiemi" (PI: Carlo Toffalori)