Workshop on open problems in low complexity dynamics
8-9 Jul 2021 Amiens (France)

Topics

This meeting will concern dynamical systems, ergodic theory and relations with discrete mathematics, arithmetics and computer science with a special focus on open problems on low complexity dynamics.

This will be the occasion to present the state of the art of some (still)  open problems. Each  lecture will only last 30 min.  We plan an hybrid conference, i.e. in a conference room and at the same time online via Zoom.

A collection of the presentations of the problemswill be available online and  will be published in Hal/ArXiv. In the future, if  a relevant  progress is done on one  of these problems and after the agreement of the author, the document will be updated to mention the advances.

 

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Important dates

The workshop is from

the 8th  to the 9th of July 2021

 

Registration is free but mandatory (click on the registration menu at left).

Deadline is the 30th of June 2021

 

 

Invited speakers

Maria Isabel CORTEZ (PUC, Chile) 

Settled elements in the group of automorphisms of trees   

abstract    slides   video

 

Sebastian DONOSO (U. de Chile)

Multiplicative actions and applications

 abstract     slides   video

 

Sébastien LABBÉ (Univ. de Bordeaux)

Markov partitions for Z^2-actions

abstract     slides   video

 

Samuel LELIÈVRE (U. Paris-Saclay)

Billiard language of polygons

abstract     video

 

Julien LEROY (Univ. Liège)

Factor complexity of S-adic shifts

abstract    slides   video

 

Domique PERRIN (U. Paris-Est) 

Ambiguity in symbolic dynamics

abstract     slides    videohttps://plmbox.math.cnrs.fr/f/e4c9150321a941cba6cd/?dl=1https://plmbox.math.cnrs.fr/f/e4c9150321a941cba6cd/?dl=1

 

Wolfgang STEINER (U. de Paris) 

Multidimensional continued fractions and S-adic systems

abstract    slides  video

 

Thierry de la RUE (U. de Rouen)

Some questions around the Pascal-adic transformation

abstract    slides   video

Poster

Felipe Arbulú (UPJV) :                                            Rank One Systems

 

Christopher Cabezas (UPJV)           Homomorphisms between multidimensional constat shape substitution

 

Fabien Durand (UPJV)                                              Pisot conjecture for subsitution

 

Bastián Espinoza (UPJV-U. de Chile)                 Computing the Topological Rank of Minimal Subshifts

 

France Gheeraert (Univ. de Liège)                        S-adic characterization of dendric subshift

 

Herman Goulet-Ouellet (U. Porto)                           Suffix-Connected Languages

 

Martin Lustig (Aix-Marseille Univ.)                Questions at the occasion of the Dyadisc4-Conference in Amiens

 

Place

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The conference will take place at the Universities of Picardie Jules Verne (UPJV):

Citadelle, room E001

rue des Français libres,

Amiens.

see the map

 

 

In the virtual world, the conference will be avaible online on Zoom. 

The link will appear later.

The password will be send to the registered participants.

 

Accomodations

Some hotels close to the university are:

Appart City Amiens

Hotel Victor Hugo

Hotel Spatial

Le Saint Louis

Sponsors

 UPJV      CNRS

 

 

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