Events

Workshop “Ergodic Theory, Algorithms and Rigorous Computations”

Warwick, 3-7 April 2017

Organising Committee: W.Bahsoun (Loughborough), S.Galatolo (Pisa), M.Pollicott (Warwick), B.Saussol (Brest) and S.Vaienti (Toulon)

Local Organisers: W.Bahsoun and M.Pollicott

Confirmed Speakers: Viviane Baladi (MJ-PRG, CNRS) Michael Dellnitz (Paderbon) Mark Demers (Fairfield) Frédéric Faure (Grenoble) Gary Froyland (New South Wales) Georg Gottwald (Sydney) Sébastien Gouëzel (Rennes) Oliver Jenkinson (QM-UL) Oliver Junge (Munich) Kathrin Padberg-Gehle (Dresden) Carlangelo Liverani (Rome II) Ian Melbourne (Warwick) Francoise Pene (Brest) Cecilia González-Tokman (Queensland) Warwick Tucker (Uppsala) Polina Vytnova (QM-UL)

One-day workshop on Dynamical Systems in Trieste, Wednesday 11 January 2017.

Talks:

• Stefano Galatolo (Pisa),  “A functional analytic approach for skew products with weakly contracting fibers. Application to the statistical stability.”
• Maurizio Monge (UFRJ, Brazil), “Rigorous computation in random dynamics and computer-aided proof of noise-induced-order.”
• Davide Ravotti (Bristol), “Ergodic properties of area-preserving flows on compact surfaces.”
• Oliver Butterley (ICTP), “Open Sets of Exponentially Mixing Anosov Flows.”

Further information: https://indico.ictp.it/event/8117/.

Spring school in convex symplectic geometry: Bochum, 20-24 February 2017

For more information see:

https://www.ruhr-uni-bochum.de/ffm/Lehrstuehle/Lehrstuhl-VII/springschool17.html.en

Note: The school will cover travel and lodging expenses of a limited number of participants. See the above web site for instructions about how to participate.

Wednesday, 14th December 2016, 14:30 - 15:30 (ICTP)

Title: “Small divisor problems: some old and new open problems”

Venue:  Luigi Stasi Seminar Room, ICTP.

The First DinAmicI Day to be held at Gran Sasso Science Institute in L’Aquila is approaching. For people arriving on the 24th, we are meeting at the restaurant “Il primo papavero” for dinner.

This is the program of the event (25 November 2016):

9:00-9:50   Mauro Artigiani, “Lagrange spectrum of Veech translation surfaces” 10:00-10:50  Anna Miriam Benini, “Singular values and periodic points” 11:00-11:30  Coffee Break 11:30-12:20  Sara Munday, “Slippery Devil’s Staircases”

12:45-14:30  Lunch Break

ANNOUNCEMENT

ETH-ITS Winter School on “CONSERVATIVE DYNAMICS”

Engelberg, Switzerland, 5-11 February 2017.

Courses:

• Bassam Fayad (Institut de Mathematiques de Jussieu & CNRS, Paris) “Quasi-periodic Birkhoff sums in smooth ergodic theory”

• Marcel Guardia (Universitat Politècnica de Catalunya, Barcelona) “Oscillatory motions in the three body problem”

• Vadim Kaloshin (University of Maryland and ETH-ITS Zürich) “Stochastic Arnol’d diffusion”

• Alfonso Sorrentino (Universita di Roma “Tor Vergata”) “Birkhoff Billiards”

FINANCIAL SUPPORT: We invite interested participants to apply for financial support (which includes lodging and meals). Please, send an email to  winterschool@eth-its.ethz.ch  before 15th November 2016, including your CV and a one-page description of your research. Priority will be given to students and post-docs. Results will be announced by the end of November .

Organization board: Sebastien Gouëzel, Laurent Guillopé, Samuel Tapie

Scientific board: Nalini Anantharaman, Viviane Baladi, Colin Guillarmou, Masato Tsujii

Three mini-courses presenting complementary aspects and techniques on hyperbolic flows will form the core of this Summer School. They will be given by S. Dyatlov (M.I.T.), L. Flaminio (U. Lille 1) and C. Liverani (U. Roma Tor Vergata).

Research talks will complete these mini-courses, given by: A. Drouot (U. Berkeley), F. Faure (U. Grenoble Alpes), F. Naud (U. Avignon), G. Paternain (U. Cambridge), F. Pène (U. Brest), M. Tsujii (Kyushu U.), T. Weich (U. Paderborn), M. Zworski (U. Berkeley).

Tuesday 4th October at 17:00 (ICTP)

“A geometric model for the natural extension of continued fraction maps”

Abstract: Just as classical “Floor” continued fractions induce the Gauss map on the real unit interval, other euclidean division algorithms (Ceiling, Even, Odd, NearestInteger, …) induce piecewise-fractional maps with integer coefficients. All these maps have natural extensions that can easily be described on an ad hoc basis.
We present a general framework for dealing with all these maps in a uniform way. The construction is geometric and well visualizable, exploiting both the interpretation of continued fractions as symbolic dynamics for the geodesic flow on the modular surface, and the projective duality between the hyperbolic plane and the de Sitter space.

This is a call for the participation of all DinAmicI to the Prima Giornata DinAmica, our first social meeting to be held on 25 November at the Gran Sasso Science Institute in L’Aquila.

There will be seminars by Mauro Artigiani, Anna Miriam Benini and Marcello Seri in the morning.  Whereas the afternoon will be devoted to the assembly of the DinAmicI, in which we will discuss possible directions of development of the group.

It is a pleasure to announce that our biennial meeting to be held in 2017, will take place in Rome in the week 5-9 June.

It will be sponsored by INdAM with the title

“Workshop INdAM - DinAmicI V - Modern Trends in the Ergodic Theory of Dynamical Systems”

and have agreed to be part of the scientific committee: Carlangelo Liverani, Yakov Sinai and Lai-Sang Young.

More information and a website will appear soon.