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.
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.
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.
Here is the announcement of 1 yearly post-doc position funded by the ERC StG “Stable and Chaotic Motions in the Planetary Problem”, at the University of Naples “Federico II”, Department of Mathematics and Applications. Deadline: 10 October, 2016 (1:30 p.m.)
Link: https://www.unina.it/documents/11958/12921780/MA_03_2016_TIPB_Bando_10.pdf/dd341992-dbdc-4562-8e2a-47fe6ff92bfb
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.
The workshop will be held at ICTP, Trieste, 19-23 June 2017. Particular emphasis will be devoted to the core topics which have benefited from the seminal contributions of Yakov Pesin: nonuniform hyperbolicity, dimension theory, thermodynamical formalism.
Speakers: Bunimovich, Buzzi, Denker, Dolgopyat, Hochman, A. Katok, S. Katok, Khanin, Ledrappier, Liverani, Luzzatto, Pesin, Pollicott, F. Rodriguez-Hertz, Sarig, Schmeling, Senti, Shub, Viana, Wilkinson, Zhang
Organizers: Dmitry Dolgopyat, Federico Rodriguez-Hertz, Omri Sarig. Local Organiser: Stefano Luzzatto.
[Message from Stefano Marmi]
Dear Collegue,
I would be grateful if you could bring to the attention of your best postgraduate students and PhD holders that a two years long research position in “Dynamical systems, computational ergodic theory, randomness and pseudo-randomness” is available at the Scuola Normale Superiore in Pisa.
PhD students can also apply, provided they obtain their PhD no later than 31st december 2016.
*Deadline for application is September 26th 2016.
Thursday 29th September at 16:30 (ICTP)
“Ergodicity and Partial Hyperbolicity on Unit Tangent Bundles of Sufaces”
Abstract: A diffeomorphism is partially hyperbolic if the tangent bundle of the ambient manifold splits into three invariant sub-bundles, \(TM = E_s \oplus E_c \oplus E_u\), in such a way that \(df\) contracts the vectors of \(E_s\) and expands the vectors of \(E_u\) while the vectors of \(E_c\) have an intermediate behavior. We will present some new advances in the study of the ergodicity of volume preserving partially hyperbolic diffeomorphisms acting on the unit tangent bundle of hyperbolic surfaces.
DEPARTMENT COLLOQUIUM
12 SEPTEMBER 2016 , 15.00 (A refreshment will follow in the common room)
AULA DAL PASSO - DEPARTMENT OF MATHEMATICS
UNIVERSITA’ DI ROMA “TOR VERGATA”
Speaker: Prof. Walter Craig (McMaster University)
Title: Vortex Filament Dynamics
Abstract The evolution of vortex filaments in three dimensions is an important problem in mathematical hydrodynamics. It appears in questions on solutions of the Euler equations as well as in the fine structure of vortex filamentation in a superfluid.
Thursday 18th August at 14:30 (ICTP)
“Ergodicity of Surface Actions via Flag Manifold”
Abstract: This talk is devoted to study the ergodicity of smooth surface actions. We provide a sufficient condition for surface actions to be ergodic with respect to the Lebesgue measure. First, we address the main results obtained so far for the unit circle, as a main tool in higher dimensional. After that, by introducing the notion of flag manifold, we explain how rich minimality of sufficiently smooth action on the flag manifold may lead to the ergodicity of the initial action.
