Category Archives: Events

Mather’s memorial conference at Princeton University (Oct. 1-3 2018)

Dear colleagues,

on October 1st – 3rd 2018, it will be held at Princeton University a meeting in tribute to the memory of John N. Mather (1942-2017):

Here is a list of speakers, who have accepted to give lectures on John’s fundamental contributions to many areas of mathematics:

J. Damon (Univ. North Carolina)
A. Fathi (Georgia Tech)
C. Fefferman (Princeton Univ.)
J. Féjoz  (Univ. Paris Dauphine)
G. Forni (Univ. of Maryland)
M. Goresky  (IAS, Princeton)
V. Kaloshin (Univ. of Maryland)
L. Polterovich (Tel Aviv University)
A. Sorrentino  (Univ. of Rome Tor Vergata)
D. Sullivan (Stony Brook Univ.)(

The link for the registration is the following:

We would be grateful if you could forward this announcement  to interested people.

If you need further information, please do not hesitate to contact us.

We look forward to hearing from you.

Best regards,

M. Goresky
H. Hofer
V. Kaloshin
Y. Sinai
A. Sorrentino

EMS Lectures Summer School, 16-18 July 2018 (University of Rome Tor Vergata)

EMS LECTURES SUMMER SCHOOL – 16, 17, 18 July 2018
Department of Mathematics – University of Rome Tor VergataThe 2018 European Mathematical Society Lecturer

Prof. Gigliola Staffilani (MIT, USA)
will deliver a general Colloquium on Tuesday July 17 and a PhD course on July 17 and 18.
These lectures will be supplemented by a course of Prof. Nicola Visciglia (University of Pisa) on July 16 and 17.
Titles of the courses:Gigliola Staffilani (MIT – 2018 EMS Lecturer): On the long time dynamics for the defocusing nonlinear Schrodinger equations.

Nicola Visciglia (Univ. Pisa): Scattering theory for the nonlinear Schrödinger equation in the euclidean setting

This school is part of the MIUR Excellence Department Project awarded to the Department of Mathematics, University of Rome Tor Vergata, CUP E83C18000100006.

A limited amount of funds for lodging for PhD students and young researchers will be available. To apply, submit a short CV and a letter of presentation of the advisor/mentor to Ms Simonetta De Nicola
( before June 20.

Coffee breaks and lunches will be offered by the Department.

The participation is free, but registration is mandatory at the conference web page

before July 5

The Organizing Committee

Michiel Bertsch (Univ. Rome Tor Vergata)
Andrea Braides (Univ. Rome Tor Vergata)
Alessandra Celletti (Univ. Rome Tor Vergata)
Roberto Natalini (IAC-CNR, Rome)

Giornata Analisi Armonica, Probabilita’, e Sistemi Dinamici (16 aprile 2018)

Giornata di Analisi Armonica, Probabilita’, e Sistemi Dinamici

Location: Aula 1E (palazzina E)
Dipartimento SBAI (Universita’ di Roma “La Sapienza”)
via A. Scarpa 14, Roma

Lunedi’ 16 aprile:

ore 14:30

ore 15:30

ore 16:30

This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement N°647133)”

Summer School in Dynamics at ICTP, 16-27 July 2018

A Summer School in Dynamical Systems which will be held at ICTP, Trieste (Italy) on 16-27 July 2018.
The school is targeted to Masters and beginning PhD students and aims at introducing a variety of fundamental ideas and techniques in dynamics. The first week will not assume prior knowledge in the field of dynamical systems. Students can also register for the second week only.
Female students are especially encouraged to apply. A limited number of grants are available to support the attendance of selected participants, with priority given to participants from developing countries.
Organizers and lectures:
-Jana RODRIGUEZ-HERTZ (Southern University of Science and Technology of China)
-Corinna ULCIGRAI (University of Bristol, UK)
-Amie WILKINSON (University of Chicago, USA)
Local organizer: Stefano Luzzatto (ICTP)
Week 1
A circle of concepts and methods in dynamics.
Basic concepts in dynamics will be introduced, with many examples, especially in the setting of circle maps. Topics include rotations of the circle, doubling map, Gauss map and continued fractions and an introduction to the basic ideas of symbolic codings and invariant measures. At the end of the week we will discuss some simple examples of structural stability and renormalization.
Week 2
Ergodicity in smooth dynamics (10h, Jana Rodriguez-Hertz and Amie Wilkinson)
The concept of ergodicity is a central hypothesis in statistical mechanics, one whose origins can be traced to Boltzmann’s study of ideal gases in the 19th century. Loosely speaking, a dynamical system is ergodic if it does not contain any proper subsystem, where the notion of “proper” is defined using measures. A powerful theorem of Birkhoff from the 1930’s states that ergodicity is equivalent to the property that “time averages = space averages:” that is, the average value of a function taken along an orbit is the same as the average value over the entire space. The property of ergodicity is the first stepping stone in a path through the study of statistical properties of dynamical systems, a field known as Ergodic Theory.
We will develop the ergodic theory of smooth dynamical systems, starting with the fundamental, linear examples of rotations and doubling maps on the circle introduced in Week 1. We will develop some tools necessary to establish ergodicity of nonlinear smooth systems, such as those investigated by Boltzmann and Poincaré in the dawn of the subject of Dynamical Systems. Among these tools are distortion estimates, density points, invariant foliations and absolute continuity. Closer to the end of the course, we will focus on the ergodic theory of Anosov diffeomorphisms, an important family of “toy models” of chaotic dynamical systems.
Renormalization in entropy zero systems (5h, Corinna Ulcigrai)
Rotations of the circle are perhaps the most basic examples of low complexity (or “entropy zero”) dynamical systems. A key idea to study systems with low complexity is renormalization. The Gauss map and continued fractions can be seen as a tool to renormalize rotations, the behaviour of a rotation on finer and finer scales. We will see two more examples of renormalization in action.
The first is the characterization of Sturmian sequences, which arise as symbolic coding of trajectories of rotations (and hint at more recent developments, such as the characterization of cutting sequences for billiards in the regular octagon). The second concerns interval exchange maps (IETs), which are generalizations of rotations. We will introduce the Rauzy-Veech algorithm as a tool to renormalize IETs. As applications, we will give some ideas of how it can be used (in some simplified settings) to study invariant measures and (unique) ergodicity and deviations of ergodic averages for IETs.
Tutorial and exercise sessions will be held regularly and constitute an essential part of the school.
Tutors: Oliver BUTTERLEY (ICTP), Irene PASQUINELLI (Durham University, UK), Davide RAVOTTI, (University of Bristol, UK), Lucia SIMONELLI (ICTP), Kadim WAR (Ruhr-Universität, Bochum, Germany).
Women in Mathematics: Activities directed to encourage and support women in mathematics, such as panel discussions and small groups mentoring and networking, will be organized during the event.
Deadlines for applications:
2 April 2018 (for applicants requesting financial support)
25 June 2018 (for applicants NOT requesting financial support)

Please note the fast-approaching DEADLINE (2 April 2018) for applicants requesting financial support!

School “Stable and Chaotic Motions in the Planetary Problem”

The school:

“Stable and Chaotic Motions in the Planetary Problem”

will take place in Asiago (Italy), June 10-15 2018, funded by the homonym ERC project Stable and Chaotic Motions in the Planetary problem.

The aim of this school is to study in depth the dynamics of planetary
systems from  the underlying mathematical theories coming from perturbation theories and going back to A. N. Kolmogorov,  V. I. Arnold and J. Moser, up to the recent astronomical observations of comets, asteroids and exoplanets from ground and space.

We foresee 18 hourly mathematical and 10 astronomical lectures.

a) The Mathematical Lectures:
-Alessandra Celletti, Univ. Tor Vergata, Roma (lectures on KAM Theorem);
-Vadim Kaloshin, University of Maryland & ETH, Zurigo (Arnold diffusion);
-Richard Moeckel, University of Minnesota (the N-Body problem);
-Tere Seara, UPC, Barcellona (Arnold diffusion);

b) The Astronomical Lectures (10 hours):
-Alessandro Morbidelli, Observatoire de la Coste d’Azure, Nice (evolution of planetary systems)
-Ivano Bertini, University of Padova (space missions, comets);
-Foriangela La Forgia, University of Padova (comets);
-Francesco Marzari, University of Padova (extrasolar planets dynamics)

The precise titles and abstracts will be soon announced.
The lectures will be held at the Astrophysical Observatory in Asiago.

If you are interested to participate, please register by sending an e-mail to, by includig also a short CV, before 30 April.

The participation to the school is open to Phd students, Post doc researchers and researchers. We strongly encourage the participation of Phd and Post-Doc researchers. We will be able to cover the local expenses for a limited number of young participants: to apply for financial support please mention it in the registration e-mail.

The selection of the participants and of the financial support will
be confirmed by e-mail.

Accomodation: a limited number of rooms (cheap, from 10 to 15 euros per day, but comfortable; with kithchen facility) are available in the guest rooms at the Observatory. Further information on other possible accomodations will be soon available.

Please feel free to forward this information to anyone you know who might be interested.

The organizing committee: Cesare Barbieri, Giancarlo Benettin, Massimiliano Guzzo, Monica Lazzarin, Gabriella Pinzari