# Workshop Programme

## for period 11-15 May

### Algebraic Theory of Difference Equations

11-15 May

Timetable

Monday 11 May | ||

09:00-09:30 | Registration | DIS |

09:30-10:30 | Singer, M (North Carolina State) |
DIS |

Galois theories for difference equations I. (Tutorial) | Satellite | |

10:30-11:00 | Tea/Coffee | DIS |

11:00-12:00 | Scanlon, T (UC, Berkeley) |
DIS |

Model theory and difference equations I. (Tutorial) | Satellite | |

12:00-14:00 | Lunch at University House | DIS |

14:00-15:00 | Ramis, J-P (Paul Sabatier Toulouse III) |
DIS |

Invariants for linear difference and q-difference equations I. (Tutorial) | Satellite | |

15:00-16:00 | Umemura, H (Nagoya) |
DIS |

Principle of galois theory. | Satellite | |

16:00-16:30 | Tea/Coffee | DIS |

16:30-17:30 | Casale, G (Rennes 1) |
DIS |

Galois theory for nonlinear difference equations | Satellite | |

17:30-18:30 | Wine Reception, School of Mathematics | DIS |

Tuesday 12 May | ||

09:30-10:30 | Singer, M (North Carolina State) |
DIS |

Galois theories for difference equations II. (Tutorial) | Satellite | |

10:30-11:00 | Tea/Coffee | DIS |

11:00-12:00 | Scanlon, T (UC, Berkeley) |
DIS |

Model theory and difference equations II. (Tutorial) | Satellite | |

12:00-14:00 | Lunch at University House | DIS |

14:00-15:00 | Ramis, J-P (Paul Sabatier Toulouse III) |
DIS |

Invariants for linear difference and q-difference equations II. (Tutorial) | Satellite | |

15:00-16:00 | Sauloy, J (Paul Sabatier Toulouse III) |
DIS |

Using q-difference equations study nonabelian H 1over elliptic curves | Satellite | |

16:00-16:30 | Tea/Coffee | DIS |

16:30-17:30 | Chatzidakis, Z (Paris 7 - Denis-Diderot) |
DIS |

Difference fields and descent of difference varieties | Satellite | |

17:30-18:00 | Tomasic, I (QMUL) |
DIS |

Fields with automorphism and measure | Satellite |

Wednesday 13 May | ||

09:30-10:33 | Halburd, R (UCL) |
DIS |

Integrable systems and difference equations (Tutorial) | Satellite | |

10:30-11:00 | Tea/Coffee | DIS |

11:00-12:00 | van der Put, M (Groningen) |
DIS |

Families of singular connections and the Painlevé equations | Satellite | |

12:00-16:30 | Free time | DIS |

16:30-17:00 | Sokolov, V (Landau Institute for Theoretical Physics) |
DIS |

Termination of hydrodynamic type chains | Satellite | |

17:00-17:30 | Nishioka, S (Tokyo) |
DIS |

Irreducibility of q-Painlevé equation of type $A_6^{(1)}$ in the sense of order | Satellite | |

17:30-18:00 | Ovchinnikov, A (Illinois, Chicago) |
DIS |

Differential Tannakian categories and fiber functors | Satellite | |

18:00-18:30 | Juan, L (Texas Tech) |
DIS |

Picard-Vessiot extensions with specified Galois group | Satellite |

Thursday 14 May | ||

09:30-10:30 | Matzat, B-H (Heidelberg) |
DIS |

Frobenius modules for groups of Lie type | Satellite | |

10:30-11:00 | Tea/Coffee | DIS |

11:00-12:00 | di Vizio, L (CNRS, IMJ, Paris) |
DIS |

Arithmetic theory of q-difference equations | Satellite | |

12:00-14:00 | Lunch in University House | DIS |

14:00-15:00 | Kowalski, P (Wroclaw) |
DIS |

Ax's theorem for additive power series | Satellite | |

15:00-16:00 | Gekhtman, M (Notre Dame) |
DIS |

Poisson geometry of directed networks and integrable lattices | Satellite | |

16:00-16:30 | Tea/Coffee | DIS |

16:30-17:30 | Halburd, R (UCL) |
DIS |

Admissibility of solutions of discrete dynamical systems | Satellite | |

19:00-22:00 | Drinks and Banquet at University House | DIS |

Friday 15 May | ||

09:30-10:30 | Hardouin, C (Heidelberg) |
DIS |

Galois theory of q-difference in the roots of unity | Satellite | |

10:30-11:00 | Tea/Coffee | DIS |

11:00-12:00 | Taimanov, I (Novosibirsk State) |
DIS |

The Moutard transformation and its applications | Satellite | |

12:00-14:00 | Lunch at University House | DIS |

14:00-15:00 | Laine, I (Joensuu) |
DIS |

Tropical Nevalinna theory and ultra-discrete equations | Satellite | |

15:00-16:00 | Novikov, S (Maryland) |
DIS |

New discretization of complex analysis | Satellite |

Other Seminars |

Seminars in the University National and International Scientific Research Meetings |